top rated 4g lte bts on sale for stairwells

BTS DBS BBU3900 LTE GSM TDSCDMA WCDMA CDMA2000 base station BBU RRU LBBP UBBP WBBP
LBBP: LBBPc LBBPd2 LBBPd3 LBBPd4
UBBP: UBBPc UPPPb UBBPd1 UBBPd2 UBBPd3 UBBPd4 UBBPd5 UBBPd6 UBBPd8 UBBPd9 UBBPe3 UBBPe4
UMPT: UMPTb1 UMPTb2 UMPTb3 UMPTb4 UMPTb7 UMPTb9  
Boards: WBBP / LMPT / UTRP / USCU / UELP / UFLP / UFLPb / UPEU / UEIU / FAN
Devices: DRRU3151 BBU3900 BBU3910 BTS3012 BTS3606 BTS3900 DBBP530 DBS3900 RRU3201 RRU3808 RRU3203 RRU3220 RRU3221 RRU3229 RRU3222 RRU3240 RRU3829 RRU3841 RRU3908 V1 RRU3908 V2 RRU3928 RRU3929 RRU3942 RRU3642 RRU3260 RRU3268 RRU3832 RRU3838 RRU3938 RRU3004 RRU3008 RRU3804 RRU3806 RRU3630 RRU3638 RRU3639 RRU3906 RRU3926 RRU3938 RRU3939 RRU3151 RRU3161 RRU3232 RRU3251 RRU3252 RRU3256 RRU3942 RRU3222
Distributed Base Station DBS3900
This modular unit is designed to be installed far from other units — speeding site selection and network construction and saving investment in repeaters. It enables flexible coverage along railway lines, especially tunnels and bridges. It consists of a Baseband Unit (BBU) and a number of Remote Radio Units (RRUs), creating a single powerful cell over multiple sites.
The DBS3900 can support both GSM-R and eLTE. The GSM-R system can be upgraded to eLTE for Railway by software — there’s no need to replace hardware. Its low power consumption makes it possible to be powered by green energy — solar power, wind power, and biogas.
 

Features & Benefits
1) Mobility Management
2) Ultra High Speed Mobility
3)  Extended Cell Access Radius
4)  Network Security
5) Voice over IP (VoIP)
6) Trunking Voice Services
7) Location Services (LCS)
8) Way Antenna Extension
Supports 2 x 2 MIMO and 4 x 2 MIMO
Supports UE Category 2/3/4
9) Smart Network Configuration and Optimization
10) Reliability
1+1 Backup of the eNodeB Main Control Board
Baseband Board Backup (CPRI Backup)
11) Transmission Networking
12)  Admission and Scheduling
Active Queue Management (AQM)
Radio/transport resource pre-emption
13) Power Saving
Intelligent power-off of carriers in the same coverage Power Supply Unit (PSU) intelligent sleep mode
Symbol power saving