US Patent:
20200373972, Nov 26, 2020
Inventors:
- Germantown MD, US
Lun LI - Germantown MD, US
Jingyang LU - Germantown MD, US
Genshe CHEN - Germantown MD, US
Weifeng SU - East Amherst NY, US
Xingping LIN - Germantown MD, US
Xingyu XIANG - Germantown MD, US
Wenhao XIONG - Germantown MD, US
International Classification:
H04B 7/0413
H04B 17/336
H04B 17/391
Abstract:
A multiple-input and multiple-output (MIMO) bolt-on device for a single-input and single-output (SISO) radio, a MIMO channel emulator for testing the MIMO bolt-on device, and a MIMO channel emulation method are provided. The MIMO bolt-on device includes: a plurality of antennas, a multi-channel receiver, a plurality of couplers, a micro-controller, and a switch device. The multi-channel receiver includes a plurality of channels for signal transmission. Each coupler is configured to couple the multi-channel receiver with one of the plurality of antennas. The micro-controller is coupled to the multi-channel receiver to compare signals from the plurality of channels, thereby identifying a channel with a highest signal-to-noise (SNR) among the plurality of channels. The switch device is coupled to the micro-controller and configured to select an antenna corresponding to the channel with the highest SNR among the plurality of antennas for a connection between a selected antenna and the SISO radio.
