Systems and methods for forwarding a multi-user RF signal
First Claim
Patent Images
1. A dynamic frequency translating repeater, said repeater comprising:
- a receiver configured to receive a multi-user signal comprising a first user signal occupying a first spectrum and a second user signal occupying a second spectrum;
a first frequency shifter dynamically configured to frequency shift the first spectrum by a first amount to produce a shifted first user signal, based on received first user information;
a second frequency shifter dynamically configured to frequency shift the second spectrum by a second amount to produce a shifted second user signal, based on received second user information, wherein the first amount is not equal to the second amount;
a signal combiner configured to form a repeater signal comprising the shifted first user signal and the shifted second user signal; and
a transmitter configured to transmit the repeater signal.
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Abstract
A dynamic frequency translating repeater operating in a mobile communications system is operable to receive a multi-user signal and perform time-varying and user-specific frequency shifting in the repeater signal. The dynamic frequency translating repeater may further perform user subcarrier specific dynamic frequency translation. Different mobile stations may be allocated different frequency shift amounts based on the interference environments, resource allocations, and scheduling constraints particular to each mobile station.
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Citations
31 Claims
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1. A dynamic frequency translating repeater, said repeater comprising:
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a receiver configured to receive a multi-user signal comprising a first user signal occupying a first spectrum and a second user signal occupying a second spectrum; a first frequency shifter dynamically configured to frequency shift the first spectrum by a first amount to produce a shifted first user signal, based on received first user information; a second frequency shifter dynamically configured to frequency shift the second spectrum by a second amount to produce a shifted second user signal, based on received second user information, wherein the first amount is not equal to the second amount; a signal combiner configured to form a repeater signal comprising the shifted first user signal and the shifted second user signal; and a transmitter configured to transmit the repeater signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method performed by a repeater in a mobile radio system, said method comprising:
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receiving, at the repeater, a multi-user signal comprising a first user signal having a spectrum and a second user signal having a spectrum; frequency shifting at least a portion of the spectrum of the first user signal by a first amount to produce a shifted first user signal, based on received first user information; frequency shifting at least a portion of the spectrum of the second user signal by a second amount to produce a shifted second user signal, based on received second user information; forming a repeater signal comprising the shifted first user signal and the shifted second user signal; and transmitting the repeater signal; wherein the first amount is not equal to the second amount. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A frequency translating repeater, wherein the repeater is configured to:
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receive a multi-user signal comprising a first user signal having a spectrum and a second user signal having a spectrum; frequency shift the spectrum of the first user signal by a first amount to produce a shifted first user signal, based on received first user information; frequency shift the spectrum of the second user signal by a second amount to produce a shifted second user signal, based on received second user information; form a repeater signal comprising the shifted first user signal and the shifted second user signal; and transmit the repeater signal; wherein the first amount is not equal to the second amount. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification