2 results about "Soft handover" patented technology

The application relates to a signal processing method, device, system, storage medium and program product. The method comprises the following steps: for any next-level device, determining the AGC gain corresponding to the next-level device according to a preset threshold and the uplink power of the current uplink signal of the next-level device, and performing gain adjustment on the target uplink signal of the next-level device according to the AGC gain, so as to realize automatic gain control. The method is not only beneficial to reducing uplink combined noise, improving the SNR of the uplink signal of the communication interface and the dynamic range of the signal, thereby improving the uplink rate of the entire cell in the coverage area, but also saves the traffic judgment process, and does not need the corresponding carrier soft switching process of the AU device, so that the signal processing method of the embodiment is more efficient and simple.

The application discloses a variable step-size dual-mode blind equalization method for QAM signals, a storage medium and equipment, and belongs to the technical field of blind receiving and demodulation of wireless communication systems. The application solves the problem that the traditional hard switching mechanism is easy to cause system transient oscillation and lock loss. The application adjusts the iteration step size by constructing an error exponential function with a transient error signal as an independent variable, automatically gives the system a larger step size in the initial stage of the algorithm to accelerate convergence, and adaptively attenuates when the error tends to zero to suppress steady-state fluctuations, effectively overcoming the inherent contradiction between convergence speed and steady-state accuracy of the traditional fixed step-size algorithm; a soft switching mechanism based on a continuous confidence factor is used to replace the traditional hard switching decision, the global convergence ability of the MMA algorithm and the extremely high steady-state accuracy of the DD algorithm are smoothly and non-oscillatingly fused through a nonlinear fusion factor, transient oscillation and error propagation effect caused by mode switching are significantly suppressed, and system lock loss is avoided. The application can be applied to blind equalization of wireless communication systems.