Method and apparatus for concurrent communication with multiple wireless communication systems of different radio access technologies

摘要

A wireless device supporting concurrent communication with multiple wireless systems of different radio access technologies (RATs) are disclosed. In an exemplary design, an apparatus includes first and second receivers supporting concurrent signal reception from wireless systems of different RATs. The first receiver receives a first downlink signal from a first wireless system of a first RAT. The second receiver receives a second downlink signal from a second wireless system of a second RAT, which is different from the first RAT. The first and second receivers may operate concurrently. The second receiver may be broadband and/or may support carrier aggregation. The apparatus may further include first and second local oscillator (LO) generators to generate LO signals for the first and second receivers, respectively, based on different divider ratios in order to mitigate voltage controlled oscillator (VCO) pulling.

主权项

1. An apparatus for wireless communication, comprising:
a first receiver configured to receive a first downlink signal from a first wireless system of a first radio access technology (RAT); and a second receiver configured to receive a second downlink signal from a second wireless system of a second RAT different from the first RAT, the first receiver and the second receiver configured to operate concurrently to receive the first downlink signal and the second downlink signal, respectively; a local oscillator (LO) controller configured to select a first divider ratio and a second divider ratio, the second divider ratio different from the first divider ratio; a first LO generator configured to generate a first LO signal at the first frequency for the first receiver based on the first divider ratio; and a second LO generator configured to generate a second LO signal at the second frequency for the second receiver based on the second divider ratio.