Carrier aggregation receiver, transmitter and transceiver

Abstract

The invention provides an RF receiver / transmitter apparatus for carrier aggregation, and provides a routing circuitry formed by a plurality of mixer modules for achieving both the function of carrier aggregation and the mixing frequency process of signals. This architecture allows sharing an RF front-end, improving degree of integration, and reducing hardware cost and circuitry power consumption. In addition, in the process of reception and transmission, the apparatus may perform different processing and configuration for each sub-channel to increase circuit design flexibility. The receiver apparatus includes at least one antenna, a first signal processing unit, a routing mixer device, a second signal processing unit and a digital signal processor (DSP); and the routing mixer device includes a plurality of mixer module and a plurality of current / voltage adders to achieve signal routing control through opening or closing of the mixer, switching the signal transmission path or switching the signal synthesizer.

Description

technical field [0001] The present invention relates to a carrier aggregation transceiver, in particular to a radio frequency transceiver device that realizes carrier aggregation through a switching device composed of a mixer. Background technique [0002] With the advancement of wireless communication technology, the connection between people and the network no longer needs to be limited by physical network cables; more and more users connect to the Internet through smart phones and tablet computers. Compared with the traditional use of personal computers, these Portable and personal devices allow users to connect to the Internet anytime, anywhere. [0003] Many network applications require high speed and real-time, which means that the demand for bandwidth will increase. With regard to the increasing bandwidth demand, two main problems arise: 1. It is not easy to obtain a single continuous and wide frequency band. 2. In order to make the original device continue to use t...

AI Technical Summary

Problems solved by technology

For this increasing bandwidth demand, there are two main problems: 1. It is not easy to obtain a single continuous and wide frequency band

In addition, when the distance between the carrier frequencies is large, the channel fading suffered by each other will be different. Therefore, the dynamic range requirements of the analog-to-digital converter in this architecture are relatively high. more expensive hardware

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