How to Phase-shift keying?

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Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency reference signal (the carrier wave). The modulation is accomplished by varying the sine and cosine inputs at a precise time. It is widely used for wireless LANs, RFID and Bluetooth communication.

Power and resource efficient uplink dmrs sequences for ifdma

ActiveCN110036589AMulti-frequency code systemsPilot signal allocationResource blockCarrier signal

A method of transmitting demodulation reference signals (DMRS) over one, three or five resource blocks (RBs) with Interleaved Frequency Division Multiple Access (IFDMA) from a wireless device to a wireless network node in a wireless network wherein Single Carrier Frequency Division Multiple Access (SC-OFDMA) is deployed in uplink, is provided. At least one of: a set of base sequences including thirty quadrature phase shifting keying, QPSK, sequences of length 6, 18 or 30 is determined, a demodulation reference signal sequence is derived from the determined set of base sequences, the demodulation reference signal sequence is multiplexed, and the multiplexed demodulation reference signal sequence is transmitted, by the wireless device, to the wireless network node.

Power and resource efficient uplink dmrs sequences for ifdma

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Owner:TELEFON AB LM ERICSSON (PUBL)

1 results about "Phase-shift keying" patented technology

Power and resource efficient uplink dmrs sequences for ifdma

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