Qinghua Li
556Patents
22h-index
266Co-inventors
93Inventor score
Filing activity: Jul 25, 2000 → May 30, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9710214B2 | Room sensor applications and techniques | Physics | 237 | Active |
| US8041362B2 | Downlink resource allocation and mapping | Electricity | 99 | Active |
| US7751368B2 | Providing CQI feedback to a transmitter station in a closed-loop MIMO system | Electricity | 78 | Active |
| US7804800B2 | Efficient training schemes for MIMO based wireless networks | Electricity | 69 | Active |
| US7719993B2 | Downlink transmit beamforming | Electricity | 67 | Active |
| US7616704B2 | Broadband multicarrier transmitter with subchannel frequency diversity for transmitting a plurality of spatial streams | Electricity | 44 | Active |
| US7778599B2 | Aggregated channel feedback | Electricity | 44 | Active |
| US7580505B2 | Method for inspecting object using multi-energy radiations and apparatus thereof | Physics | 44 | Active |
| US7539253B2 | Interpolation in channel state feedback | Electricity | 41 | Active |
| US7039412B2 | Method and apparatus for transmitting wireless signals on multiple frequency channels in a frequency agile network | Electricity | 39 | Expired |
| US7362822B2 | Recursive reduction of channel state feedback | Electricity | 36 | Active |
| US7778826B2 | Beamforming codebook generation system and associated methods | Electricity | 35 | Active |
| US7895044B2 | Beamforming codebook generation system and associated methods | Electricity | 34 | Active |
| US7818013B2 | Downlink channel parameters determination for a multiple-input-multiple-output (MIMO) system | Electricity | 33 | Active |
| US7366245B2 | Calibration in MIMO systems | Electricity | 33 | Active |
| US7595768B2 | Switching schemes for multiple antennas | Electricity | 32 | Expired |
| US7002518B2 | Low profile sector antenna configuration | Electricity | 32 | Expired |
| US9225478B2 | Supporting measurments and feedback for 3D MIMO with data transmission optimization | Emerging Cross-Sectional Technologies | 27 | Active |
| US9513861B2 | Systems and methods for discovering wireless display devices using inaudible audio signals | Physics | 27 | Active |
| US9872233B2 | Devices and method for retrieving and utilizing neighboring WLAN information for LTE LAA operation | Electricity | 24 | Active |
| US8301155B2 | Base station and method for resource allocation using localized and distributed resource blocks | Electricity | 24 | Active |
| US7961802B2 | Interpolation in channel state feedback | Electricity | 23 | Active |
| US7236748B2 | Closed loop feedback in MIMO systems | Electricity | 22 | Expired |
| US8644289B2 | Enhanced node B and method for precoding with reduced quantization error | Emerging Cross-Sectional Technologies | 21 | Active |
| US7602745B2 | Multiple input, multiple output wireless communication system, associated methods and data structures | Electricity | 20 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.