5 results about "Pilot power" patented technology

A method includes receiving, by a user equipment (UE), a first message from a network apparatus, the first message including configuration information for superimposed pilot (SIP) transmission including a configuration for pilot power transmission and data power transmission, determining, by the UE, the uplink (UL) pilot power and UL data power for SIP transmission based at least on the configuration information, generating, by the UE, an SIP uplink (UL) transmission based at least on UL pilot power and data power, and transmitting, by the UE, the SIP UL transmission to the network apparatus.

Systems and methods for implementing a continuous current monitor based on a low-side pilot power device is generally described. The semiconductor device includes a first circuit to filter an output signal from a power stage to generate a filtered signal that is coherent with an inductor current through an inductor in the power stage, a second circuit to generate a calibration code, and a third circuit to monitor current from a pilot device integrated in a low-side device of the power stage. The first circuit can calibrate the filtered signal to generate a calibrated signal based on the calibration code and the current from the pilot device. The second circuit can adjust the calibration code based on the calibrated signal. A combination of samples corresponding to the calibrated signal and samples corresponding to the current from the pilot device can recreate the inductor current.

A method includes receiving, by a user equipment (UE), a first message from a network apparatus, the first message including configuration information for superimposed pilot (SIP) transmission including a configuration for pilot power transmission and data power transmission; generating, by the UE, an SIP uplink (UL) transmission based upon the configuration information; and transmitting, by the UE, the SIP UL transmission to the network apparatus (Fig.5)

This invention discloses a semi-blind direct localization method for thermal noise communication systems, comprising: based on the frequency domain received signal model of the thermal noise communication system, utilizing the statistical characteristics of the received signal to construct a maximum likelihood estimation problem concerning the mobile station position and channel fading coefficient, obtaining an objective function containing logarithmic determinant terms and trace function terms of a matrix; the objective function simultaneously includes a contribution from pilot power and an expected contribution from the power of the received data signal; using an optimization minimization algorithm framework, alternately solving for the mobile station position and channel fading coefficient until a preset convergence condition is met, obtaining the localization result; wherein, by constructing a substitution function containing the statistical characteristics of blind pilots and data, a closed-form solution for the channel parameters is derived in each iteration, and the mobile station position is updated through a two-dimensional grid search. This invention mines the statistical information of the data portion, effectively improving the utilization rate of the received signal and increasing the localization accuracy under low signal-to-noise ratio conditions.

This invention discloses a method for low-latency transmission of Internet of Things (IoT) assisted by a smart reflector and superimposed pilot signals, relating to the field of communication performance optimization technology. The method includes establishing a system model of URLLC assisted by a smart reflector and superimposed pilot signals to obtain a hybrid signal of direct and reflected links; performing LMMSE channel estimation on the obtained hybrid signal; based on the channel estimation result, performing data detection on the hybrid signal to obtain a lower bound of a closed-form expression for the achievable rate with a finite block length; based on the lower bound of the closed-form expression, constructing a joint optimization problem model of superimposed pilot power and smart reflector phase shift with the objective of maximizing user URLLC and rate; and designing an algorithm using a block coordinate descent method to jointly optimize the optimization problem and obtain the maximum weighted sum rate. This invention can improve transmission rate while reducing URLLC transmission latency.