At present,5G networks have been widely commercialized.To improve coverage and downlink speed,and improve user experience,the Carrier Aggregation(CA)is introduced in 3rd Generation Partnership Project(3GPP)to aggregate multiple contiguous or non-contiguous CA into a larger bandwidth to meet the requirements of commercial wireless networks.CA can make full use of operators'non-contiguous spectrum resources and im-prove the utilization of discrete spectrum resources.In 5G SA networking,especially in a large-scale co-construction and sharing environment of an operator,CA can make full use of spectrum resources of all parties to aggregate into a larger bandwidth,so as to achieve excellent user experience,establish a competitive advantage,and effectively expand a coverage range by using a combination of a high frequency and a low frequency,thereby allevi-ating a coverage bottleneck problem.
关键词
载波聚合技术/频谱资源/主载波/A6的辅载波
Key words
Carrier aggregation technology/Spectrum resources/Primary carrier/Auxiliary carrier of A6
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