A story about the technologies due to which the Internet connection amplifier works on the example of a specifically selected amplifier.
I needed a cellular signal amplifier that works at a distance of at least 15 km from the "tower". I searched the net. Found several options. Compared. Being a little savvy user in the field of cellular communications, I decided to figure out what's what. What for? Interesting.
So, what did I find, what I chose, how I understood the technology of what, how and why works over such a long distance.
Content
How mobile signal boosters work
How to strengthen the mobile signal at a distance of 10 km or more
Comparison of selected amplifier types
The main criteria for choosing an antenna
Where did I learn about the technology
MiM technology
Antenna principles
Modem Huawei E3372h
Router Mikrotik
What problems can the explicit beamforming algorithm solve?
Power distribution of transmitters
Avoiding obstacles and working with reflections
Eliminate channel fading
HILINK firmware as an opportunity to find the Internet where there is none
Increased coverage and transmission distance
What does the amplifier based on MiMO technology give
How stability works
Output
, MiMO, .
. . , .
10
- , . 9-15 , 5 .
« », MiMO, 15 . 10 – 20 . « » 1,5 - 2,5 .
MiMO- 17 24 . 2 , , . , . 24 2 23 , 3-5 .
, , . .
-, - - :
● GSM 900 ( );
● GSM 1800 ( );
● GSM 900/1800 ( );
● GSM/UMTS 900/1800/2100 ( 3G);
● GSM/DCS/LTE 900/1800 ( 4G);
● GSM/UMTS/LTE 900/1800/2100 ( 3G 4G).
, MIKROTIK, ZyXELL . , .
, , , .
, . .
. .
Zyxel LTE . , . 5 , 30 . .
– , Cat.6, , . 8 . . PoE, . , . , , , , . .
HiTE PRO UNO, . . .
- STREET 2 PRO. - .
. . – . MiMO. , .
, :
MiMO, : , .
.
, - .
.
, . , , . .
, : « Wi-Fi 6: OFDMA MU-MIMO».
– 15 dBi , – MIMO.
MIMO
,
MIMO – , :
1. SIMO ( );
2. MISO ( ).
MIMO (Multiple-Input-Multiple-Output, ) – , . STREET 2 PRO . .
, MIMO . Wi-Fi, 3G/LTE, ( , LTE – 4G).
. MIMO , . , , . , 3G, LTE- .
802.11n. 802.11abg, , SISO, .
MiMO . : (3G, GSM, LTE), – (LTE).
. , . 40 .
Street 2 PRO . , – . . , ,
, 2,4 .
:
MiMO.
, 4G. - STREET 2 PRO. – , YS-system. , , .
15-17 .
– STREET ULTRA PRO. , , . , ULTRA . . STREET ULTRA PRO , , , , , .
Huawei Mikrotik. , . – . , , .
YouTube . , , , , . . , – , , . , . – . .
, ,
, , .
– 15 . 150 /. . . , , , , .
STREET 2 PRO:
: GSM (850/900/1800/1900 ), UMTS (Band 900/2100 ), FDD-LTE (Band 1, 3, 7, 8, 20), TDD-LTE (Band 38, 40
:
SIM-: mini-SIM
: Power on Ethernet, 24
: Ethernet
: -30 – +40
: IP67
: 400 , Qualcomm Atheros AR9331
: 32
: 320 320 85
: 1282
,
Huawei E3372h
Huawei E3372h. CRC9. , . , MiMO-, – , 150 /, cat.4 lte, . 20 80 / 100. , Android Linux.
, STREET 2 PRO , , Huawei.
STREET 2 PRO, -
Mikrotik
/ HiLink , , , , .
Qualcomm Atheros AR9331 64 DDR2.
. , , . , : GSM(EDGE) – LTE (all bands) – 3G (DC-HSPA+)
, , -, (ABS) – , .
4G MIM0 – 3G Huawei Mikrotik.
, , , .
« ». .
, , , .
« » (explicit beamforming)
« » (explicit beamforming) MIMO. 15 .
– . . (). 2,4 , STREET 2 PRO, .
( ) (OFDM). OFDM , OFDMA.
, .
, .
, , , , . , .
,
, , . . . STREET. , , .
. ? - , . , . , . . - , , .
Street 2 Pro – . , , 2G- , 3G- , Yota Tele2. Yota 3G 3G- 4G- .
, , , , , . , , , , .
. , 5 – 6 /
, – 12 /
, , : 5 – 7 / 20 – 30 /.
HILINK, ,
, HILINK.
USB-Ethernet-RNDIS. DHCP .
. , .
IP- ( 192.168.8.1), (default route), IP-, . (-) (NAT). (port forwarding DMZ).
– . STREET 2 PRO . «» . «».
. . , . , . - , , 150%.
MiMO
, . 50 /, .
. – . ?
. « » .
?
– .
. , , , .
, , , , :
● «»;
● ,
- ;
● , ;
● , , , .
« » ( “implicit beamforming”). .
I need such an amplifier so that I can surf and watch videos without any problems. With it, you can get a stable ping throughout the entire session, so that you can stream and watch live broadcast. To install this, you only need a vertical pipe, and to connect - a SIM card of any operator, a pair of patch cords and, if necessary, a router. Ten minutes of work - and even where smartphones cannot load a simple page, reliable and high-speed Internet appears.
Bottom line. The chosen antenna fully meets my goals.