Apparatus and method for data transmission
First Claim
1. Radio communication apparatus for transmitting control data to at least one base station of a radio telephone system, the radio communication apparatus comprising output power amplifying means responsive to a control signal from an output power control means for varying a predetermined output power level from the output power amplifying means in accordance with a sequence of power levels representative of a control message intended for transmission from the radio communication apparatus to the base station.
2 Assignments
0 Petitions
Accused Products
Abstract
Radio communication apparatus for transmitting control data, comprising output power amplifying means responsive to a control signal from an output power control means for varying a predetermined output power level from the output power amplifying means in accordance with a sequence of power levels indicative of a control message. The predetermined output power level is selectable from a range of predetermined power levels and may be variable between power levels of adjacent predetermined power levels for the range of predetermined power levels. Typically, the control message is a request to vary the output power level for inhibiting radio signal fading.
29 Citations
26 Claims
- 1. Radio communication apparatus for transmitting control data to at least one base station of a radio telephone system, the radio communication apparatus comprising output power amplifying means responsive to a control signal from an output power control means for varying a predetermined output power level from the output power amplifying means in accordance with a sequence of power levels representative of a control message intended for transmission from the radio communication apparatus to the base station.
- 13. A method for transmitting control data between a transmitting means and at least one receiving means in a communication system, comprising the step of sequentially varying a predetermined output power level from the transmitting means in accordance with a sequence of power levels that is selected to represent a control message intended for transmission from the transmitting means to the receiving means.
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24. A radio communication apparatus for transmitting information over a radio link to at least one base station of a radio telephone system, said radio communication apparatus comprising:
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a transmitter for producing a RF transmission signal at a transmit power level; and output power control means for producing a control signal that is coupled to said transmitter; wherein said control signal directs said transmitter to vary said transmit power level of said transmission signal to produce a time-sequence of power levels, within a portion of said transmission signal, which represent a control message for conveying information to the base station, said control message being descriptive of a characteristic of the radio link.
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25. A method for transmitting information between a transmitter and at least one receiver over a radio link in a wireless communication system, comprising the steps of:
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transmitting first information by modulating a RF carrier in accordance with the first information; and simultaneously transmitting second information by modulating a transmit power of the RF carrier in accordance with the second information, the second information comprising a control message containing information that is descriptive of the radio link. - View Dependent Claims (26)
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Specification