APPARATUS AND METHOD FOR REDUCING SELF-INTERFERENCE IN A RADIO SYSTEM
First Claim
1. A transceiver having self-interference suppression, comprising, within one transceiver device:
- two or more transmitters comprising one or more signal generators for transmitting transmit signals having transmit center frequencies in a selected first subchannel; and
one or more receivers having receiver inputs for simultaneously receiving a desired receive signal in a second subchannel and an undesired accumulated interference signal due to said transmitted signals; and
at least one of said transmitters also comprising a precompensation circuit that modifies the transmit signals such that said accumulated interference signal at the receiver(s) inputs is reduced.
2 Assignments
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Accused Products
Abstract
Full duplex radio wireless systems and methods and especially transceivers for full duplex radio wireless systems with reduction of self-interference are described. MIMO (=multiple input multiple output several antennas for output and input) is used within one device with multiple antennas to remove self-interference in a proactive way. For example, a transceiver is described having self-interference suppression, comprising, within one transceiver device: two or more transmitters comprising one or more signal generators for transmitting transmit signals having transmit center frequencies in a selected first subchannel; and one or more receivers having receiver inputs for simultaneously receiving a desired receive signal in a second subchannel and an undesired accumulated interference signal due to said transmitted signals; and at least one of said transmitters also comprising a precompensation circuit that modifies the transmit signals such that said accumulated interference signal at the receiver(s) inputs is reduced.
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Citations
19 Claims
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1. A transceiver having self-interference suppression, comprising, within one transceiver device:
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two or more transmitters comprising one or more signal generators for transmitting transmit signals having transmit center frequencies in a selected first subchannel; and one or more receivers having receiver inputs for simultaneously receiving a desired receive signal in a second subchannel and an undesired accumulated interference signal due to said transmitted signals; and at least one of said transmitters also comprising a precompensation circuit that modifies the transmit signals such that said accumulated interference signal at the receiver(s) inputs is reduced. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of providing self-interference suppression for a transceiver, one transceiver device having two or more transmitters comprising one or more signal generators for transmitting said transmit signals having transmit center frequencies in a selected first subchannel;
- and one or more receivers having receiver inputs for simultaneously receiving a desired receive signal in a second subchannel and an undesired accumulated interference signal due to said transmitted signals, the method comprising;
modifying the transmit signals such that said accumulated interference signal at the receiver(s) inputs is reduced. - View Dependent Claims (9, 10, 11, 12)
- and one or more receivers having receiver inputs for simultaneously receiving a desired receive signal in a second subchannel and an undesired accumulated interference signal due to said transmitted signals, the method comprising;
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13. A computer program product comprising code segments which when executed on a processing engine execute a method of providing self-interference suppression for a transceiver, one transceiver device having two or more transmitters comprising one or more signal generators for transmitting said transmit signals having transmit center frequencies in a selected first subchannel;
- and one or more receivers having receiver inputs for simultaneously receiving a desired receive signal in a second subchannel and an undesired accumulated interference signal due to said transmitted signals, the method comprising;
modifying the transmit signals such that said accumulated interference signal at the receiver(s) inputs is reduced. - View Dependent Claims (14, 15, 16, 17, 18)
- and one or more receivers having receiver inputs for simultaneously receiving a desired receive signal in a second subchannel and an undesired accumulated interference signal due to said transmitted signals, the method comprising;
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19. An integrated circuit for self-interference suppression for use with a transceiver, whereby within one transceiver device there is provided two or more transmitters comprising one or more signal generators for transmitting transmit signals having transmit center frequencies in a selected first subchannel;
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one or more receivers having receiver inputs for simultaneously receiving a desired receive signal in a second subchannel and an undesired accumulated interference signal due to said transmitted signals; and the integrated circuit having a precompensation function that modifies the transmit signals such that said accumulated interference signal at the receiver(s) inputs is reduced.
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Specification