Share the RSRP, and get guidance from Maswell. Maswell 4G 5G MIMO Antenna (up to 4.5dBi) 700-6000MHz. This is an entry-level gain MIMO antenna designed for outdoor areas with strong signals. It has a full frequency band of 700-6000MHz, covering low-band GSM 3G 4G LTE 4G+ (LTE-A) 5G and high-band 5G.
eBay