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AssigneeSamsung Electronics Co., Ltd.
InventorsAris PAPASAKELLARIOU, Joon-Young Cho
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A method and apparatus for multiplexing positive or negative acknowledgement signals (ACK or NACK, respectively) and channel quality indication (CQI) signals from a user equipment (UE) to a serving base station (Node B) during a CQI transmission time interval (TTI) in a single-carrier frequency division multiple access (SC-FDMA) communication system. The UE does not have simultaneous data transmission. The multiplexing of acknowledgement signals is implicitly achieved by the UE applying different orthogonal covers on the reference signal (RS) symbols transmitted in the CQI TTI, depending on whether the UE sends ACK or NACK. At the Node B receiver, the detection of ACK or NACK is based on the accumulated RS energy, after removing each of the possible orthogonal covers applied at the UE transmitter. For robust system performance, absence of ACK/NACK and NACK are mapped onto the same orthogonal cover.
A method for transmitting a first type of information bits using a signal in a communication system, the signal having a duration of at least one slot, the at least one slot including a first number and a second number of symbols, wherein a reference signal is transmitted in the first number of symbols and a second type of information bits are transmitted in the second number of symbols, the method comprising:
A method for receiving a first type of information bits using a signal in a communication system, the signal having a duration of at least one slot, the at least one slot including a first number and a second number of symbols, wherein a reference signal is received in the first number of symbols and a second type of information bits are received in the second number of symbols, the method comprising:
A method for transmitting positive and negative acknowledgement (ACK/NACK) bits using a signal in a communication system, the acknowledgement (ACK/NACK) bits are in response to data reception, the signal having a duration of at least one slot, the at least one slot including a first number and a second number of symbols, wherein a reference signal is transmitted in the first number of symbols, the method comprising:
An apparatus for transmitting a first type of information bits using a signal in a communication system, the signal having a duration of at least one slot, the at least one slot including a first number and a second number of symbols, wherein a reference signal is transmitted in the first number of symbols and a second type of information bits are transmitted in the second number of symbols, the apparatus comprising:
An apparatus for transmitting positive or negative acknowledgement (ACK/NACK) bits using a signal in a communication system, the acknowledgement (ACK/NACK) bits are in response to data reception, the signal having a duration of at least one slot, the at least one slot including a first number and a second number of symbols, wherein a reference signal is transmitted in the first number of symbols, the apparatus comprising:
Dependencies are inferred from the claim text.