Frequency-hopping arrangement for a radio communication system
First Claim
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1. A radio transmitter system comprising:
- baseband signal processing means having at least one output for outputting at least one baseband signal;
at least two radio transmitters, each of said radio transmitters having an individual fixed transmitting frequency and a baseband input, for modulating a baseband input signal to said fixed transmitting frequency; and
switching means having at least one input connected to said baseband signal processing means, and at least two outputs connected to said baseband inputs of said at least two radio transmitters, respectively, for sequentially switching said at least one baseband signal between said at least two radio transmitters in accordance with a predetermined frequency-hopping sequence.
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Abstract
The invention relates to the realization of frequency hopping in radio transmitter, receiver or transceiver systems. In the system according to the invention, a separate fixed-frequency radio transmitter or radio receiver is provided for each frequency utilized in the frequency hopping. The frequency hopping is realized by switching received inbound signals or outbound signals as baseband signals to the different fixed-frequency transmitters or receivers in accordance with a frequency-hopping sequence.
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Citations
17 Claims
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1. A radio transmitter system comprising:
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baseband signal processing means having at least one output for outputting at least one baseband signal; at least two radio transmitters, each of said radio transmitters having an individual fixed transmitting frequency and a baseband input, for modulating a baseband input signal to said fixed transmitting frequency; and switching means having at least one input connected to said baseband signal processing means, and at least two outputs connected to said baseband inputs of said at least two radio transmitters, respectively, for sequentially switching said at least one baseband signal between said at least two radio transmitters in accordance with a predetermined frequency-hopping sequence. - View Dependent Claims (4, 5, 6, 7, 8, 14, 15)
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2. A radio receiver system comprising:
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baseband signal processing means having at least one input for inputting at least one baseband signal; at least two radio receivers, each said radio receiver having an individual fixed receiving frequency and a baseband output, for demodulating a signal from said fixed receiving frequency to baseband; and switching means having at least one output connected to said at least one input of said baseband signal processing means, and at least two inputs connected to said baseband outputs of said at least two receivers, respectively, for sequentially switching said at least one baseband signal from said radio receivers to said baseband signal processing means in accordance with a predetermined frequency-hopping sequence. - View Dependent Claims (16)
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3. A radio transceiver system comprising:
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baseband signal processing means having at least one input for inputting at least one pair of inbound baseband signal and at least one output for outputting at least one outbound baseband signal; at least two radio transceivers, each radio transceiver having a pair of individual fixed transmitting and receiving frequencies each radio transceiver having a baseband input and a baseband output, for modulating a baseband signal at said input to said fixed transmitting frequency and for demodulating a signal from said fixed receiving frequency to baseband; and switching means for sequentially switching said at least one outbound baseband signal from said baseband signal processing means to said radio transceivers and for sequentially switching said at least one inbound baseband signal from said radio transceivers to the baseband signal processing means in accordance with a predetermined frequency-hopping sequence. - View Dependent Claims (9, 10, 11, 12, 13, 17)
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Specification