F1-10 and F2-10 MHZ with Carrier Aggregation or F1-20MHZ better performance?

[bobsh]

What is better throughput and performance? F1-10 and F2-10 MHZ with Carrier Aggregation or F1-20MHZ better performance? as per my information 20MHZ lte throughput better then 10 and 10 CA. Why?41240 (https://www.linkedin.com/groups/136744/136744-6379651699866501123)

[auto_art]

for two 10 each, you have more signal overhead than single 20 meg carrier.