Multi-antenna system and method for multiplexing feedback signal receiving link thereof
A multi-antenna system and feedback signal technology, applied in the field of multi-antenna systems, can solve the problems of increasing board area and cost, and achieve the effect of saving area and cost, and saving feedback signal receiving links
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Embodiment 1
[0020] Such as figure 1 As shown, it is a schematic structural diagram of a multi-antenna system according to an embodiment of the present invention. The multi-antenna system includes: a plurality of transmitting links, a feedback signal receiving link, and a digital processor; A feedback link switching switch is connected to the directional couplers of the above-mentioned multiple transmission links;
[0021] When both the digital processor and the feedback link switching switch are selected to connect to the same transmission link, the feedback signal receiving link receives signals from the connected transmission link through the directional coupler of the connected transmission link. Feedback signal and transmit it to said digital processor;
[0022] The digital processor calculates the digital pre-distortion coefficient according to the received feedback signal, and performs digital pre-distortion processing on the transmission link; at the same time, the digital process...
Embodiment 2
[0040] Based on the first embodiment above, the embodiment of the present invention also provides a flow chart of a feedback signal receiving link multiplexing method in a multi-antenna system, as shown in Figure 4 As shown, wherein, the multi-antenna system includes: a plurality of transmitting chains, a feedback signal receiving chain, and a digital processor; The directional coupler of the road is connected; the above methods include:
[0041] 401. When both the digital processor and the feedback link switching switch select to connect to the same transmission link, the feedback signal receiving link receives signals from the connected transmission link through the directional coupler of the connected transmission link. The feedback signal of the circuit is transmitted to the digital processor;
[0042] 402. The digital processor calculates a digital predistortion coefficient according to the received feedback signal, and performs digital predistortion processing on the t...
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