Back to results
US 9,002,290 B2Granted
System and method for testing a radio frequency (RF) multiple-input-multiple-output (MIMO) device under test (DUT)
AssigneeLitePoint Corporation
InventorChristian Volf Olgaard
Life of this patent
Estimating the term…
Abstract
A system and method for testing a radio frequency (RF) multiple-input-multiple-output (MIMO) device under test (DUT) in which system costs are minimized by using fewer precision RF MIMO testing subsystems together with lower precision integrated RF MIMO signal conversion circuitry to test the DUT.
Claims18
An apparatus including a system for testing a radio frequency (RF) multiple-input-multiple-output (MIMO) device under test (DUT), comprising:
- a plurality of RF signal ports to convey a corresponding plurality of MIMO signals, including a plurality of receive MIMO signals received from a DUT;
- signal routing circuitry coupled to said plurality of RF signal ports to provide
- a plurality of replica MIMO signals corresponding to said plurality of receive MIMO signals, and
- a composite signal including said plurality of receive MIMO signals;
- first signal processing circuitry coupled to said signal routing circuitry to provide one or more processed signals by processing at least one of
- said composite signal, and
- a first portion of said plurality of replica MIMO signals;
- signal conversion circuitry coupled to said signal routing circuitry to convert a second portion of said plurality of replica MIMO signals to provide one or more converted signals;
- second signal processing circuitry coupled to said first signal processing circuitry and said signal conversion circuitry to process said one or more processed signals and said one or more converted signals to provide test data indicative of one or more signal transmission performance parameters of said DUT.
6 more elements
A method of testing a radio frequency (RF) multiple-input-multiple-output (MIMO) device under test (DUT), comprising:
- receiving, via a plurality of RF signal ports, a corresponding plurality of MIMO signals, including a plurality of receive MIMO signals, from a DUT;
- routing said plurality of receive MIMO signals from said plurality of RF signal ports to provide
- a plurality of replica MIMO signals corresponding to said plurality of receive MIMO signals, and
- a composite signal including said plurality of receive MIMO signals;
- providing one or more processed signals by processing at least one of
- said composite signal, and
- a first portion of said plurality of replica MIMO signals;
- converting a second portion of said plurality of replica MIMO signals to provide one or more converted signals;
- processing said one or more processed signals and said one or more converted signals to provide test data indicative of one or more signal transmission performance parameters of said DUT.
6 more elements
Dependencies are inferred from the claim text.