A transmit power measurement apparatus includes a transmit power detection path, a compensation circuit and a tracking circuit. The compensation circuit includes a programmable filter device and a compensation controller. The programmable filter device generates a filter output. The compensation controller sets the programmable filter device at least based on a frequency response of the transmit power detection path. The tracking circuit generates a transmit power tracking result at least based on the filter output.

A digital signal up-converting apparatus includes: a clock generating circuit arranged to generate a reference clock signal; an adjusting circuit coupled to the clock generating circuit and arranged to generate a first clock signal and a second clock signal according to the reference clock signal; a baseband circuit coupled to the adjusting circuit for receiving the first clock signal, wherein the baseband circuit further generates a digital output signal according to the first clock signal; and a sampling circuit coupled to the adjusting circuit and the baseband circuit for receiving the second clock signal and the digital output signal, wherein the second clock signal and the digital output signal are non-overlapping; wherein the sampling circuit samples the digital output signal based on the second clock signal and then combines the sampled digital output signal in order to generate a combined digital signal.

Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a wireless device may identify a set of at least two wireless communications channels that are available for communication with another wireless device. In some examples, the wireless device may identify at least one channel of the set, and may select integrity check information that indicates the identified wireless channel(s) that are available. The wireless device may then transmit the integrity check information during a first time period. In some examples, a wireless device may receive wireless communication that includes integrity check information on a subset of channels. The wireless device may then determine, based on the integrity check information, whether the identified subset of channels is the same as the actual subset of channels used for transmission of the wireless communications.

A digital signal up-converting apparatus includes: a clock generating circuit arranged to generate a reference clock signal; an adjusting circuit coupled to the clock generating circuit and arranged to generate a first clock signal and a second clock signal according to the reference clock signal; a baseband circuit coupled to the adjusting circuit for receiving the first clock signal, wherein the baseband circuit further generates a digital output signal according to the first clock signal; and a sampling circuit coupled to the adjusting circuit and the baseband circuit for receiving the second clock signal and the digital output signal, wherein the second clock signal and the digital output signal are non-overlapping; wherein the sampling circuit samples the digital output signal based on the second clock signal and then combines the sampled digital output signal in order to generate a combined digital signal.

A wireless communication method includes phase shift amount determination processing for determining a random phase shift amount for each of symbols of transmission data. The wireless communication method further includes modulation processing for modulating the transmission data and further shifting a phase according to the random phase shift amount for each of the symbols. The wireless communication method further includes precoding processing for performing precoding on the transmission data after the modulation processing, and transmission processing for transmitting the transmission data after the precoding processing from the transmission device to the reception device.

A communication method for a sensing session setup. The method includes: determining a first message frame, wherein the first message frame comprises capability information on sensing measurement parameters supported by a device performing the communication method; and transmitting the first message frame.

Example reference signal transmission methods and apparatus are described. One example method includes that a first node maps a reference signal to a first transmission resource and sends the reference signal. The first transmission resource is included in a second transmission resource used by the first node to send data, and the second transmission resource includes a first symbol and at least one subcarrier corresponding to the first symbol. The first transmission resource includes at least one of an M.sup.th subcarrier or an N.sup.th-to-last subcarrier in the at least one subcarrier corresponding to the first symbol, and M and N are preset, specified in a protocol, or configured. The reference signal is used to determine phase information of a channel.

This application discloses a reference signal transmission method and apparatus, and may be applied to the field of autonomous driving, intelligent driving, or short-range communications. The method includes: A first node maps a reference signal to a first transmission resource and sends the reference signal. The first transmission resource is included in a second transmission resource used by the first node to send data, and the second transmission resource includes a first symbol and at least one subcarrier corresponding to the first symbol. The first transmission resource includes at least one of an M.sup.th subcarrier or an N.sup.th-to-last subcarrier in the at least one subcarrier corresponding to the first symbol, and M and N are preset, specified in a protocol, or configured. The reference signal is used to determine phase information of a channel.