In the smartphone world, a few features generally are used to differentiate a phone’s specifications. Those are generally screen size, processor speed and CPU core count, camera resolution and possibly battery size. However, one equally relevant component in the smartphone equation is commonly neglected in the spec comparison charts, and that’s the network access speed based upon the modem. Some OEMs in certain regions discretely show which LTE speeds their phones support, some disclose three clicks deep which standards the phones supports and not speeds, but the truth is that it is not generally part of the standard discussion.
I think that is a big issue as one of the most important features are not being well communicated.
Just recently, one critical aspect of the modem’s speed has become whether or not it is capable of carrier aggregation or CA for short. The ability to bond multiple carriers (or bands of spectrum) together through carrier aggregation enables a phone’s modem to best make use of their carrier’s network and get the best possible speeds and user experience. CA also helps solve one of the biggest upcoming problems in wireless, which is the ever expanding need to serve higher and higher bandwidth video traffic due to higher and higher resolution displays and cameras.