Wake-Up Signal Transmission

A method of a network node for concurrently transmitting two or more wake-up signals (WUS) using a signal generator applying a signal generator symbol rate, wherein each WUS is for reception by a wake-up receiver (WUR) of a respective wireless communication device, the method comprising:

• selecting a respective Manchester coding symbol rate for each of the two or more WUS, wherein all of the selected respective Manchester coding symbol rates are different from each other, and wherein all Manchester codes having the selected respective Manchester coding symbol rates are orthogonal to each other;
• generating each of the two or more WUS using the signal generator and application of a Manchester code of the selected respective Manchester coding symbol rate;
• and
• multiplexing the two or more WUS for transmission in a WUS message.

A method of a network node for concurrently transmitting two or more wake-up signals (WUS) using a signal generator applying a signal generator symbol rate, wherein each WUS is for reception by a wake-up receiver (WUR) of a respective wireless communication device, the method comprising:

• selecting a respective Manchester coding symbol rate for at least one of the two or more WUS, wherein all of the selected respective Manchester coding symbol rates are different from each other, and wherein all Manchester codes having the selected respective Manchester coding symbol rates are orthogonal to each other;
• generating one or more WUS using the signal generator and application of a Manchester code of the selected respective Manchester coding symbol rate;
• generating a non-Manchester coded WUS using on-off keying and the signal generator;
• and
• multiplexing the at least one Manchester-coded WUS with the non-Manchester coded WUS for transmission in a WUS message.

A method of operating a wake-up receiver (WUR), configured to be comprised in a wireless communication device also comprising a main receiver;

• the wireless communication device configured to receive, from a network node, a wake-up signal (WUS) message comprising two or more multiplexed WUS, a particular WUS of the multiplexed MUS being for waking up the main receiver of the wireless communication device;
• wherein each of the two or more WUS is encoded by a Manchester code of a selected respective Manchester coding symbol rate, wherein all of the selected respective Manchester coding symbol rates are different from each other, and wherein all Manchester codes having the selected respective Manchester coding symbol rates are orthogonal to each other;
• the method comprising:
• receiving the WUS message;
• determining which of the selected respective Manchester coding symbol rates to apply;
• demodulating the WUS message using the determined Manchester coding symbol rate;
• determining whether the particular WUS is detected;
• and
• waking up the main receiver responsive to detection of the particular WUS.

An arrangement for a network node, for concurrent transmission of two or more wake-up signals (WUS) using a signal generator configured to apply a signal generator symbol rate, wherein each WUS is for reception by a wake-up receiver (WUR) of a respective wireless communication device, the arrangement comprising:

• processing circuitry configured to cause:
• selection of a respective Manchester coding symbol rate for each of the two or more WUS, wherein all of the selected respective Manchester coding symbol rates are different from each other, and wherein all Manchester codes having the selected respective Manchester coding symbol rates are orthogonal to each other;
• generation of each of the two or more WUS using the signal generator and application of a Manchester code of the selected respective Manchester coding symbol rate;
• and
• multiplexing of the two or more WUS for transmission in a WUS message.

An arrangement for a network node, for concurrent transmission of two or more wake-up signals (WUS) using a signal generator configured to apply a signal generator symbol rate, wherein each WUS is for reception by a wake-up receiver (WUR) of a respective wireless communication device, the arrangement comprising:

• processing circuitry configured to cause:
• selection of a respective Manchester coding symbol rate for at least one of the two or more WUS, wherein all of the selected respective Manchester coding symbol rates are different from each other, and wherein all Manchester codes having the selected respective Manchester coding symbol rates are orthogonal to each other;
• generation of one or more WUS using the signal generator and application of a Manchester code of the selected respective Manchester coding symbol rate;
• generation of a non-Manchester coded WUS using on-off keying and the signal generator;
• and
• multiplexing of the at least one Manchester-coded WUS with the non-Manchester coded WUS for transmission in a WUS message.

An arrangement for a wake-up receiver (WUR) configured to be comprised in a wireless communication device also comprising a main receiver;

• the wireless communication device configured to receive, from the network node, a wake-up signal (WUS) message comprising two or more multiplexed WUS, a particular WUS of the multiplexed WUS being for waking up the main receiver of the wireless communication device;
• wherein each of the two or more WUS is encoded by a Manchester code of a selected respective Manchester coding symbol rate, wherein all of the selected respective Manchester coding symbol rates are different from each other, and wherein all Manchester codes having the selected respective Manchester coding symbol rates are orthogonal to each other, the arrangement comprising:
• processing circuitry configured to cause:
• reception of the WUS message;
• determination of which of the selected respective Manchester coding symbol rates to apply;
• demodulation of the WUS message using the determined Manchester coding symbol rate;
• determination of whether the particular WUS is detected;
• and
• waking up of the main receiver responsive to detection of the particular WUS.