Downlink carrier aggregation system and electronic device

Abstract

The invention relates to a downlink carrier aggregation system and an electronic device. The downlink carrier aggregation system comprises a multiple-input multiple-output single-pole multi-throw switch and multiple multiplexers. The multiple-input multiple-output single-pole multi-throw switch comprises N moving end and N fixed ends. The N moving ends are connected with an antenna switch. The N fixed ends are mutually connected. The N is a positive integer greater than or equal to 2. The fixed ends of the multiple-input multiple-output single-pole multi-throw switch are connected with the command ends of the corresponding multiplexers. According to the system and the electronic device, the downlink carrier aggregation is realized through utilization of the multiple-input multiple-output single-pole multi-throw switch, so expensive devices such as a quadruplexer, a sextuplexer and an octuplexer are prevented from being used. Costs can be reduced, market demands can be satisfied, insertion losses can be reduced, and performance indexes can be optimized.

Description

technical field [0001] The present invention relates to the field of carrier aggregation, in particular to a downlink carrier aggregation system and electronic equipment. Background technique [0002] In current mobile phones, the requirement for the Downlink Carrier Aggregation (DLCA) function has become more and more common. Carrier Aggregation (CA) is one of the key technical points in LTE technology, and it can effectively solve the problem of bandwidth expansion of the current system. The so-called downlink carrier aggregation (DLCA) is to aggregate multiple subbands in a single frequency band or aggregate subbands in multiple frequency bands through carrier aggregation technology during downlink communication. [0003] At present, due to technical reasons, the use of carrier aggregation technology is mainly in downlink communication, that is, to enhance bandwidth when downloading. Currently, downlink carrier aggregation is mainly implemented by quadruplexers and hexa...

AI Technical Summary

Problems solved by technology

The existing downlink carrier aggregation scheme using a quadruplexer has several major disadvantages: first, the large loss, resulting in extremely poor sensitivity in the corresponding frequency band; second, high cost, the price of the quadruplexer is in the The third is that there are very few manufacturers that can produce quadruplexers at present, which cannot meet the market demand.

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