Tim Yu Sprint 4G Rollout Updates January 26, 2018 - 5:30 AM PST [Edited: 1/28/18 to include additional information on Samsung 4 port 800 MHz radio]
[Edited: 2/2/18 for photograph addition of an Ericsson setup]
The Triband Hexadecaport. The newest development of Sprint's recent network expenditures.
This is a new triband antenna configuration now being deployed by Sprint that is able to do 4T4R MIMO on both 800 MHz and 1900 MHz in addition to 8T8R MIMO over 2.5 GHz. All in one single antenna.
Previously, Sprint typically utilized two different antennas with one from Network Vision days being a hexport dual band unit that supports 800 MHz and 1900 MHz. While 2.5 GHz was an additional antenna and radio unit added on later. Some sites utilized (and may continue to utilize) another triband antenna model. This older generation triband antenna is a decaport (10 port) triband unit that support 4T4R on both 1900 MHz and 2.5 GHz with 2T2R on 800 MHz. This meant that an 8T8R radio would have its capabilities decreased as a result of going from 8T8R to 4T4R.
With the development and deployment of this new 16 port triband antenna, Sprint is now poised to offer 800 MHz 4 antenna transmit and receive diversity alongside 1900 MHz, while 2.5 GHz is able to fully utilize the capability of an 8T8R radio.
This means that the full capability of Sprint's 800 MHz, 1900 MHz, and LTE Plus (2.5 GHz) network can be utilized from a single triband antenna panel. Removing the limitations of the previous go-to triband antenna model. Because of these limitations, Sprint did not deploy the previous triband antenna panel in a wide scale. Now they are likely to deploy these more commonly. In fact, we are already seeing this occur in Washington State, Pittsburgh, and other places en masse.
Above: Samsung 4T4R 800 MHz setup via two 800 MHz RRH-C2, 4T4R 1900 MHz RRH-P4 , & 8T8R 2.5 GHz RRH-V3
Photograph Source: Josh (ingenium)
Currently, this type of setup has been found in Samsung vendor regions with two individual 2T2R 800 MHz RRUs to achieve 4T4R MIMO. Samsung and Sprint has a new 4 port 4T4R 800 MHz RRU that will be able to do the job of two existing 2T2R 800 MHz RRUs that will be deployed alongside this new type of antenna. This new Samsung 4 port low frequency radio is also available in Band 13 750 MHz for deployment in the Puerto Rico market due to the Sprint Open Mobile deal.
Photograph Source: Chris92 Ericsson Setup
This type of setup is yet to be seen in Ericsson or Nokia - Alcatel-Lucent territory. If you discover these in other vendor regions, be sure to post about it!
****If you're in Ericsson or Nokia / former Alcatel-lucent territory then replace the Samsung radios with the relevant Nokia, Alcatel-Lucent CDMA / LTE and Ericsson radios depending on region.***
I noticed this while driving, so I don't have a picture, but it looks like Sprint is also using a different antenna in LA Metro. It wasn't the KMW antenna pictured here, but it had more beveled front edges and was mounted next to an existing NV 800/1900 panel. Is there a scenario where a 12 port antenna + the existing NV antenna would be used instead of a single hexadecaport antenna? (It had more ports than an 8T8R antenna, but it didn't look quite look like 16.)
My sprint magic box stopped working, got a replacement magic box that's unfortunately doing the same thing. When I first got it in December i had LTE, then I was in bed it stopped as if they were waiting for me at home lol.
In the case of iPhones, VoLTE is supported on the iPhone 6 and later released models: https://support.apple.com/en-us/HT203078
I’m not sure what VoLTE support is for other makes, but those handsets will eventually upgrade or churn out as part of normal customer churn.
The Airave 3 LTE has support for voice on CDMA, in addition to providing LTE and WiFi Coverage.