INSTRUEMENT PRODUCTS

  • Tektronix
  • Keithley
  • National Instruments
  • Delorenzo
  • Ametek
  • Digilent (An NI Company)

BROADCAST PRODUCTS

  • Telestream(Tektronix Video)
  • Harmonic
  • Streambox
  • Digital nirvana
  • Newtec
  • Utah Scientific
  • Apantac
  • DekTec
  • paneda
  • norwia
  • RFS Radio Frequency Systems
  • Tag
  • Netinsight
  • Dev
  • Irdeto

COMMUNICATION PRODUCTS

  • Netscout
  • Viavi Solutions
  • Sumitomo
  • Spirent
  • Pba
  • ROHDE&SCHWARZ
  • RFS RAdio Frequency Systems
  • SevOne
  • Efficient IP
  • A10
  • netAlly
  • ADVA
  • Tencent
  • cellex
  • GSMK
  • Microtel Innovation
  • ZCTT
  • Calnex

MIMO Channel Simulator

 
Overview
MIMO (Multiple Input Multiple Output) has become the key technology of next generation of communication due to the capacity advantage. The space characteristics can be fully utilized in MIMO to increase the system capacity while the transmission power and bandwidth are maintained.
The complex 8 × n and 801.11ac technology may result in a number of problems in the laboratory. As they are sensitive to the phase, engineers must accept large errors of accuracy or spend hours in manual calibration and re-calibration of RF simulation environment. The MIMO channel simulation test system of TRANSCOM can help to realize the automation of calibration and provide the required precision and efficiency. The system or terminal performance test can be done indoors by presenting the fading characteristics of spatial transmission of wireless signals in the instrument.
Main advantages:
Simplify the test
The complicated procedures which may easily result in errors in the accurate test of complex RF signals can be
simplified and optimized.
Create a real world in the laboratory
TRANSCOM can bring the real RF scene into the laboratory, including the captured driving test scene and complex
MIMO scene.
Maximize the efficiency of resources
Even the most inexperienced member can rapidly and correctly establish and call the most complex test case.
Main characteristics:
The control process can be simplified even in the complex MIMO environment, due to the touch screen type graphical user interface.
Automatic phase calibration of higher time efficiency can
be realized in the 8 × n/TD-LTE/802.11ac test.
Support key channel simulation characteristics of TRANSCOM.
Dynamic environment emulation (DEE).
Extensible bandwidth (up to 70MHz).
Enhanced power output and dynamic range.
Key Features
Provide four MIMO wireless channel simulator prototypes.
a) Support the signal bandwidth of 70MHz and simulation of 4x4 MIMO channels.
b) The modular architecture can be extended to simulation of 4x4 channels.
c) Flexible simulation interfaces, including RF and DBB (digital baseband).
d) Complex multi-path (48 paths) fading in each channel.
e) RF channel system covering the frequency range of 400MHz to 6GHz.
f ) The low-distortion channel supports high-order modulation (such as 64QAM).
g) Implementation technology for high-speed baseband signal processing.
h) Self-correction of MIMO channel simulation system.
i) Support multi-functional interfaces, including RF, analog baseband and digital baseband.
j) Flexible application architecture, supporting two-way synchronous test.
MIMO channel simulation algorithm and implementation technology
a) Simulation of large and small channel parameter.
b) Support the typical/customized channel fading model.
c) Support the MIMO-based channel model.
d) Support the high-speed mobile environment.
e) Support AWGN digital noise adding to provide the accurate C/N or SNR.
f) Support the carrier aggregation and CoMP test.
g) Support rapid dynamic control of channel parameters and realize dynamic environment emulation (DEE). The controlled parameters include the status duration, channel output level, relative path power, etc.
Provide the open development interface for the user to program the test function according to the equipment
and test requirements. Parameter configuration and channel characteristic simulation are integrated in the test
environment.
Support the data acquisition, playback and offline analysis of channel simulation. Apply the complete information analysis function, and realize information output to the terminal.
 
Specification
  • RF Transmitter
    Frequency Range 400MHz to 6000 MHz
    Frequency Resolution 10Hz
    Output Port RF OUT N type (female)
    Output Impedance 50 Ω
    CW Output Power Range RF OUT port:–80 to -10 dBm
    CW Output Power Accuracy < ±1 dB
    CW Power Setting Step 1 dB
    Output Gain Flatness 1 dB@70MHz
    Channel Bandwidth(1dB) 70MHz
    Out-of-band Stray < –30 dBc
     
    RF Receiver
    Frequency Range 400MHz to 6000 MHz
    Frequency Resolution 10Hz
    Output Port RF OUT N type (female)
    Output Impedance 50 Ω
    CW Output Power Range –40 to 10 dBm
    CW Output Power Accuracy < ±1 dB
    CW Power Setting Step 1 dB
    Output Gain Flatness 1 dB@70MHz
    Channel Bandwidth(1dB) 70MHz
    Out-of-band Stray < –30 dBc
     
    RF to RF Interface Specification
    Chnanels 1-4
    (per)Channel Order 48
    Minimum Delay 2μs
    Amplitude Flatness ±1dB(70MHz bandwidth)
    Channel Group Delay ±0.25μs (50MHz bandwidth);
    ±0.5μs (100MHz bandwidth) < ±1 dB
    Parasitism Caused By Aliasing -60 dBc
     
    RF Local Oscillator
    Frequency Range 400MHz to 6000 MHz
    Frequency Resolution 10Hz
    SSB Phase Noise
    1000MHz -75dBc/Hz @1kHz offset carrier
    -95dBc/Hz @20kHz
    2500MHz -70dBc/Hz @1kHz offset carrier
    -100dBc/Hz @100kHz
    5000MHz -60dBc/Hz @1kHz offset carrier
    -95dBc/Hz @100kHz
    Sideband Parasitism <-60dBc (±100kHz carrier)
    VSWR <2:1
     
    Channel Interface Specification
    Numbers of Interfrence Signal (each channel) 1-5
    Frequency Range 400MHz ~ 6000MHz
    Frequency Offset Range -50 ~ +50 MHz
    Frequency Resolution 10kHz
    Frequency Accuracy¹ ±1kHz
    Frequency Accuracy² ±0.1kHz
    C/R Ratio 0.1dB
    Interfrence Level Range -35 ~ -10dBm
    Interfrence Level Resolution 0.1dB
    Interfrence Level Accuracy ±1dB
    Noise Power【1HZ bandwidth】   
    >+/-500kHz <-130dBm/Hz
    >+/-700kHz <-132dBm/Hz
    >+/-1500kHz <-135dBm/Hz
    Harmonic/Stray Signal  
    >+/-500kHz <-80dBc
    >+/-700kHz <-85dBc
    >+/-1500kHz <-95dBc
    Remote Control Port LAN
    USB-A 5 USB2.0
    Trigger Signal Output Port BNC female(TTL)
    Trigger Signal Input Port BNC(TTL)
    Bidirectional Programmable Port DB9(5 TTL)
    System SYNC Port 20 pairs LVDS
    Display Port VGA/DVI-D
     
     
    Time Base Specification
    Reference Clock Frequency 100MHz
    Aging Ratio < ±0.1 ppm/year
    Temperature Stability(reference +25 °) < ±0.01 ppm
    -75dBc/Hz @1kHz
    -95dBc/Hz @20kHz
    Output Frequency Accuracy (after warm-up 30 min) aging shift + stability
    External Reference Frequency Range 100MHz ± 5 ppm
    Input Port REF Input(BNC female)
    Input Level 0 to +10 dBm(Sine/TTL)
    Input Impedance 50Ω
    Output Port REF Out (BNC female)
    Output Level 0 to +10 dBm
    Output Impedance 50 Ω
     
    General
    Operationg Temperature +10 ~ +40 °C
    Storage Temperature –20 ~ +65 °C
    Humidity 20% ~ 80%
    Dimensions(HxWxL) 222 x 426 x 533 mm
    AC Power 100 ~ 240 VAC, 50 ~ 60 Hz
    LCD 10.4 inch XGA (1024 x 768)
    Touch Screen 4096x4096 resistive
    Operating System Windows XP
    Consumption < 450 W
    Weight < 25 Kg
    Calibrating Period 1 year