公开(公告)号：US20220255572A1

公开(公告)日：2022-08-11

申请号：US17728777

申请日：2022-04-25

申请人： Yiming Huo ,  Xiaodai Dong ,  Wei Xu ,  Marvin Yuen

发明人： Yiming Huo ,  Xiaodai Dong ,  Wei Xu ,  Marvin Yuen

IPC分类号： H04B1/04 ,  H04B7/0426 ,  H04B1/16

摘要： A system for distributed phased array multiple input multiple output (DPA-MIMO) communications is disclosed. The system includes beamforming (BF) modules. Each BF module comprises a beamforming antenna, a downconverter that downconverts a beamformed antenna radio frequency signal to an intermediate frequency signal, and an upconverter that upconverts an intermediate frequency signal to a radio frequency signal and sends said radio frequency signal to said beamforming antenna for transmission. The system further includes intermediate frequency (IF) radios. Each IF radio comprises a downconverter that downconverts an intermediate frequency signal sent from a BF module to a baseband signal, and an upconverter that upconverts said baseband signal to an intermediate frequency signal that is transmitted to a beamforming module. The system can be designed for a wearable virtual reality (VR) device, a VR base station, an automotive vehicle, an aerial vehicle, a high altitude platform (HAP) system, and a foldable handheld device.

公开(公告)号：US20210044987A1

公开(公告)日：2021-02-11

申请号：US16944035

申请日：2020-07-30

申请人： Yiming Huo ,  Xiaodai Dong ,  Wei Xu ,  Marvin Yuen

发明人： Yiming Huo ,  Xiaodai Dong ,  Wei Xu ,  Marvin Yuen

IPC分类号： H04W16/18 ,  H04B7/0413 ,  H04W24/08

摘要： Generally, this disclosure provides practical systems and methods for distributed phased array multiple input multiple output (DPA-MIMO) communications. A system may comprise a baseband processing unit; a plurality of beamforming (BF) modules each of which comprises at least a beamforming antenna and a transceiver circuit comprising at least a downconverter that downconverts a beamformed antenna radio frequency signal to an intermediate frequency signal, and an upconverter that upconverts an intermediate frequency signal to radio frequency and sends to said beam forming antenna for transmission; a plurality of intermediate frequency (IF) radios, each of which comprises a receive chain circuit that includes at least a downconverter that downconverts an intermediate frequency signal sent from said BF module to a baseband signal conveyed to said baseband processing unit, and a transmit chain circuit that includes at least an upconverter that upconverts a baseband signal received from said baseband processing unit to an intermediate frequency signal which is conveyed to said beamforming module; and a plurality of cables or any type of physical signal transmission medium, each of which connects one of said beamforming modules with one of said intermediate frequency radios. Such said system may be designed for Virtual reality wearable devices; Virtual reality base station devices; Self-driving and non-self-driving automotive vehicles; Rotary-wing unmanned aerial vehicles; Fixed-wing unmanned aerial vehicles; High-altitude communication systems; Foldable hand-held communication systems.