Apparatus and method for removing self-interference and relay system for the same
First Claim
Patent Images
1. An apparatus for removing self-interference (SI), the apparatus comprising:
- a transmitting end configured to receive parameters for channel estimation from a base station, and to map and transmit relay-reference signals (R-RS) through a region where the base station does not transmit signals, based on the parameters received from the base station; and
a receiving end configured to obtain SI channel values from signals transmitted by the transmitting end and received through a self-interference channel by using the R-RS and the receiving end to remove the SI from transmitting signals of an uplink or a downlink based on the SI channel values and to relay the SI removed transmitting signals.
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Abstract
An apparatus, a method and a relay system for removing self-interference (SI). If a relay transmitting end transmits relay-reference signals (R-RS) through a region where a base station does not transmit signals, based on a protocol predetermined with the base station, a relay receiving end obtains SI channel values from signals transmitted by the relay transmitting end and received through a self-interference channel with use of the R-RS, removes the SI from transmitting signals of an uplink or an downlink based on the SI channel values, and relays the SI removed transmitting signals.
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Citations
18 Claims
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1. An apparatus for removing self-interference (SI), the apparatus comprising:
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a transmitting end configured to receive parameters for channel estimation from a base station, and to map and transmit relay-reference signals (R-RS) through a region where the base station does not transmit signals, based on the parameters received from the base station; and a receiving end configured to obtain SI channel values from signals transmitted by the transmitting end and received through a self-interference channel by using the R-RS and the receiving end to remove the SI from transmitting signals of an uplink or a downlink based on the SI channel values and to relay the SI removed transmitting signals. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of removing self-interference (SI), the method comprising:
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registering, at a base station, an SI apparatus configured to remove self-interference; at the SI apparatus, receiving parameters required for channel estimation from the base station; at the SI apparatus, mapping relay-reference signals (R-RS) to regions where the base station does not transmit signals based on the received parameters and transmitting the mapped R-RS signals through a transmitting end; at a receiving end of the SI apparatus, obtaining SI channel values from the signals transmitted by the transmitting end through a self-interference channel by using the R-RS; and at the receiving end, removing the SI from transmitting signals of an uplink or a downlink based on the SI channel values and relaying the SI removed transmitting signals. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A relay system comprising:
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a relay transmitting end configured to receive parameters for channel estimation from a base station, and to map and transmit relay-reference signals (R-RS) through a region where the base station does not transmit signals, based on the parameters received from the base station; and a relay receiving end configured to obtain self-interference (SI) channel values from signals transmitted by the relay transmitting end and received through a self-interference channel by using the R-RS, to remove the SI from transmitting signals of an uplink or a downlink based on the SI channel values and to relay the SI removed transmitting signals. - View Dependent Claims (15, 16, 17, 18)
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Specification