Method for controlling power transitions in transmitter systems

摘要

A method for controlling a transmitter power control system in communication networks that include a modulation scheme having a non-constant amplitude envelope. The method includes generating a transmission signal and transitioning the transmission signal from a first specified power level to a second specified power level and having a transition period therebetween, and generating a constant amplitude envelope modulation of the transmission signal during the transition period. The method may further include generating a non-constant amplitude envelope modulation of the transmission signal at the first specified power level, switching to the constant amplitude envelope modulation of the transmission signal during the transition period and generating the non-constant amplitude envelope modulation of the transmission signal at the second specified power level. A mobile communication device may be used to perform the method.

主权项

1. A method for controlling a transmitter power control system in communication networks that include a modulation scheme having a non-constant amplitude envelope, wherein the communication networks include a Universal Mobile Telecommunications System (UMTS) system, the method comprising:
generating a transmission signal using the non-constant amplitude envelope modulation scheme, in the UMTS system, with a non-constant amplitude envelope modulation of the transmission signal at a first specified power level; transitioning the transmission signal from the first specified power level to a second specified power level and having a transition period therebetween, including generating a constant amplitude envelope modulation, using one of Quadrature Phase Shift Keying (QPSK), minimum-shift keying (MSK), Gaussian Minimum Shift Keying (GMSK), Frequency-Shift Keying (FSK), and Gaussian Frequency-Shift Keying (GFSK), of the transmission signal with an associated amplitude envelope during the whole transition period; and generating the non-constant amplitude envelope modulation of the transmission signal at the second specified power level.