Abstract
PURPOSE: Transmission diversity for acknowledgement and category 0 bits in a wireless communication system is provided to supply transmission diversity for obtaining both spatial diversity and frequency diversity in a channel. CONSTITUTION: Through the modulation of BPSK(Binary Phase Shift Keying), an ACK/NACK(Acknowledgement/Non-Acknowledgement) signal is modulated(200). The modulated ACK/NACK signal are multiplied through CDM(Code Division Multiplexing)(201). Through spatial-frequency block coding, the multiplied ACK/NACK signal is mapped to an OFDM(Orthogonal Frequency Division Multiplexing) resource unit having the predetermined number of control symbols having a pair of neighbor sub carriers(203). In a predetermined frequency, the multiplied ACK/NACK is transmitted repeatedly(205).
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Technologies
Resource configuration Multiplexing
Product
Base Station (eNB/gNB)
Use Cases
Wireless communication
Services
Transmitting/receiving data in downlink
Claim
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