Flexible Receiver Architecture for Multiple Component Carrier Aggregation in Down Link

摘要

A technique to provide receiver processing of a plurality of component carrier signals that are received from one or more transmitting source by a terminal device, in which filtered component carrier signals are processed and aggregated in the terminal device. Two of the component carrier signals may be in a same frequency band grouping or two or more of the component carrier signals may be in a different band grouping. The receiver architecture allows for flexible processing of the component carrier signals by allocating the different bands into frequency band groupings to process the plurality of component carrier signals.

主权项

1. A method of processing a wireless communication signal having a plurality of component carriers comprising:
receiving a plurality of component carrier signals of a wireless communication signal transmitted from one or more transmitting source; utilizing a plurality of filters at a receiver front-end to filter the wireless communication signal into separate input paths, in which the filters are configured to provide filtering that correspond to frequency bands and in which the filters are also grouped into a plurality of filter groupings to provide for respective frequency band groupings, wherein the component carrier signals are filtered into one or more of the separate input paths of the receiver based on carrier frequencies of the component carrier signals; utilizing a plurality of amplifiers to amplify respective filtered component carrier signals, in which respective input paths are separated into a plurality of amplifier paths that include at least a first amplifier path and a second amplifier path, wherein first outputs of the amplifiers of the first amplifier path for the respective frequency band groupings are configured for input into a respective first mixer stage and second outputs of the amplifiers of the second amplifier path for the respective frequency band groupings are configured for input into a respective second mixer stage; utilizing a first of a plurality of local oscillator signals to down-convert in a corresponding first mixer stage, a first filtered component carrier signal present at one of the first outputs of the first amplifier path; and utilizing a second of the plurality of local oscillator signals to down-convert in a corresponding second mixer stage, a second filtered component carrier signal present at one of the second outputs of the second amplifier path, in order to down-convert the first filtered component carrier signal and to down-convert the second filtered component carrier signal to aggregate the plurality of component carrier signals.