Apparatus and method for cancelling interferences between orthogonal coded signals in mobile communication system
First Claim
1. An apparatus for cancelling interferences between signals, the apparatus comprising:
- a receiving unit that receives an orthogonal coded signal from a transmitter and generates a received vector;
a channel estimation unit that estimates a state of a wireless channel from the transmitter to the apparatus where the cancelling of the interference between signals is performed and generates a channel state matrix;
a Q-R decomposition unit that performs Q-R decomposition with respect to the generated channel state matrix and generates a Q matrix and an R matrix, and generates a decision statistic vector based on the generated Q matrix and the received vector; and
a signal determination unit that determines a received signal with interference from the orthogonal coded signal being decreased based on the generated decision statistics vector.
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Abstract
Apparatuses and methods for cancelling interferences between signals are provided. The apparatuses includes: a receiving unit that receives an orthogonal coded signal from a transmitter and generates a received vector; a channel estimation unit that estimates a state of a wireless channel from the transmitter to the apparatus where the cancelling of the interference between signals is performed and generates a channel state matrix; a Q-R decomposition unit that performs Q-R decomposition with respect to the generated channel state matrix and generates a Q matrix and an R matrix, and generates a decision statistic vector based on the generated Q matrix and the received vector; and a signal determination unit that determines a received signal with interference from the orthogonal coded signal being decreased based on the generated decision statistics vector.
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Citations
19 Claims
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1. An apparatus for cancelling interferences between signals, the apparatus comprising:
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a receiving unit that receives an orthogonal coded signal from a transmitter and generates a received vector; a channel estimation unit that estimates a state of a wireless channel from the transmitter to the apparatus where the cancelling of the interference between signals is performed and generates a channel state matrix; a Q-R decomposition unit that performs Q-R decomposition with respect to the generated channel state matrix and generates a Q matrix and an R matrix, and generates a decision statistic vector based on the generated Q matrix and the received vector; and a signal determination unit that determines a received signal with interference from the orthogonal coded signal being decreased based on the generated decision statistics vector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for cancelling interferences between signals, the method comprising:
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receiving an orthogonal coded signal from a transmitter and generating a received vector; estimating a state of a wireless channel from the transmitter to the apparatus for cancelling interferences between signals and generating a channel state matrix; performing Q-R decomposition with respect to the generated channel state matrix and generating a Q matrix and an R matrix; generating a decision statistic vector based on the generated Q matrix and the received vector; and determining a received signal with interference being decreased from the orthogonal coded signal based on the generated decision statistics vector. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification