Apparatus and method for interference cancellation and synchronization maintenance over interference channel estimation in communication system based on full-duplex relay
First Claim
1. An apparatus for interference cancellation and synchronization maintenance over interference channel estimation in a communication system based on full-duplex relay, the apparatus comprising:
- a receive modem configured to provide received signals, fix synchronization when interference cancellation is not stable, and unfix fixed synchronization when the interference cancellation is stable;
an interference channel estimator configured to estimate an interference channel between a transmit modem and the receive modem, upon receipt of a received signal;
an interference signal controller configured to cancel an interference signal from the received signal using the estimated interference channel;
a data buffer configured to store data decoded after the estimated interference signal is canceled,wherein the interference signal is caused by a transmission signal from the transmit modem.
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Abstract
An apparatus and method for interference cancellation and synchronization maintenance over interference channel estimation in a communication system are provided. An interference channel estimator fixes synchronization and estimates an interference signal. An interference signal controller eliminates the estimated interference signal from a received RF signal. A synchronization unit unfixes fixed synchronization and tracks synchronization when the interference signal cancellation is stable. A data buffer stores data from which the interference signal is canceled.
46 Citations
20 Claims
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1. An apparatus for interference cancellation and synchronization maintenance over interference channel estimation in a communication system based on full-duplex relay, the apparatus comprising:
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a receive modem configured to provide received signals, fix synchronization when interference cancellation is not stable, and unfix fixed synchronization when the interference cancellation is stable; an interference channel estimator configured to estimate an interference channel between a transmit modem and the receive modem, upon receipt of a received signal; an interference signal controller configured to cancel an interference signal from the received signal using the estimated interference channel; a data buffer configured to store data decoded after the estimated interference signal is canceled, wherein the interference signal is caused by a transmission signal from the transmit modem. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for interference cancellation and synchronization maintenance over interference channel estimation in a communication system based on full-duplex relay, the method comprising:
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providing received signals; estimating an interference channel between a transmit modem and a receive modem, upon receipt of a signal; canceling an interference signal from the received signal using the estimated interference channel; and storing data decoded from the received signal after the interference signal is canceled, wherein synchronization is fixed when interference cancellation is not stable, wherein the fixed synchronization is unfixed and synchronization tracking is performed when the interference cancellation is stable, and wherein the interference signal is caused by a transmission signal from the transmit modem. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification