These setups consist of a Nokia Mini Macro 2.5 eNB pole mounted on a macro site connected to sector antennas. Each mini macro is capable of up to 40 MHz of total LTE spectrum for 20+20 B41 carrier aggregation and are now being utilized to bring 2.5 on air if 8T8R equipment is unavailable or does not make monetary sense.
Nokia Mini Macro 2.5 Triband Antenna on Ericsson NV Macro (note decaport triband antenna & Nokia Mini Macro)
Nokia Mini Macro 2.5 on Ericsson NV Macro
(note 2 coax rf jumpers coming off the top of the eNB)
Nokia Mini Macro 2.5 on Samsung NV Macro
Nokia Mini Macro 2.5 on Alcatel-Lucent NV Macro
That is the idea.
I don’t know the exact threshold for switching but I would imagine it’s between -100 and -110 RSRP. The device would most likely make the decision as to when to switch between UL CA and HPUE because it needs to regulate itself to stay within FCC maximum power levels.
The change in L2500 performance won’t be a big, considering the new XS supports HPUE—in fact L2500 performance may even be better on the new phones.
That being said, looking at the EIRP values of 800 MHz and 1900 MHz performance on the XS/XS Max, it looks like L800 and L1900 performance are going to take a big hit. The XS performs significantly worse on those bands than the last generation of iPhones.