Multi-frequency band receiver based on path superposition with regulation possibilities

摘要

A multi-frequency band receiver includes first and second receive paths, a combiner, a code multiplex baseband stage and an amplifier controller. The first and second receive paths receive and process first and second code multiplex signals, respectively. The first or the second receive path includes an amplifier having a variable gain factor. The combiner superposes the first and second processed code multiplex signals. The code multiplex baseband stage processes the superposed code multiplex signal to obtain and use first and second baseband receive signals. The first and second baseband receive signals represent data of the first and second code multiplex signals, respectively. In addition, the amplifier controller controls the gain factor of the amplifier having a variable gain factor so that the first or the second baseband receive signal includes a minimum reception quality which can be variably predetermined and is dependent on the operating state.

主权项

1. A multi-frequency band receiver comprising:
a first receive path configured to receive and process a first code multiplex signal; a second receive path configured to receive and process a second code multiplex signal, the first receive path or the second receive path comprising an amplifier comprising a variable gain factor; a combiner configured to superpose the first processed code multiplex signal and the second processed code multiplex signal; a code multiplex baseband stage for processing the superposed code multiplex signal to acquire and use a first baseband receive signal and a second baseband receive signal, the first baseband receive signal representing data of the first code multiplex signal, and the second baseband receive signal representing data of the second code multiplex signal; an amplifier controller configured to control the gain factor of the amplifier comprising a variable gain factor so that the first baseband receive signal or the second baseband receive signal comprises a minimum reception quality which can be variably predetermined and is dependent on an operating state of the multi-frequency band receiver; and an operating state controller configured to predetermine a value of the minimum reception quality, which can be variably predetermined and is dependent on the operating state, on the basis of the operating state of the multi-frequency band receiver.