NESiteSeer

And, correct me if I am wrong, all signal boosters, aka repeaters, are "active" devices, not "passive", in terms of wireless cellular payload. That is, the receiver and transmitter on each has to be aware of what type of signal it is, and what type of modulation technique is being used. It's not simply a chunk of spectrum where any enery above some threshold is Rx/Tx. We just had our in-building rerpeater for Sprint replaced, as the old one (installed in 2007) stopped modulating the signals correctly (it was corrupting payloads). I overheard the tech from Ericsson who did the swap out talking about the active technology a bit.

Thanks all for your responses, I do now understand how it's rolling out.... Among other things, It's going to be very interesting to see how the handsets perform handoffs between the spectrum slices. Where I reside, there are quite a few former SMR sites that never got Synergy updates for PCS band inclusion (in more rual locations). Perhaps now they will finish that as they deploy 1XA... we shall see.

Hello All, My first post here. Forgive me if this topic has been asked / answered elsewhere. I have been reading the forums here for a while and have not seen this topic anywhere. I'm somewhat familliar with how CDMA2000 allocates it's channels within a slice of spectrum, and how in-builder active repeater systems work in terms of that, but when it comes to how Sprint is rolling out TD-LTE overlays on it's existing 1900 Mhz spectrum, and preserving the aforementioned protocols, how is it allocating the LTE chunks? Is it simply stealing 3G channel chunks away for LTE? Is there any dynamic "on the fly" allocation / reallocation of 3G EV-DO and LTE occuring "on demand" per cell site/sector as user demands increase or decrease? Thanks all!