18256028. CODEBOOK GENERATION FOR PRECODING RECONFIGURABLE INTELLIGENT SURFACE (RIS) ELEMENTS simplified abstract (QUALCOMM Incorporated)
CODEBOOK GENERATION FOR PRECODING RECONFIGURABLE INTELLIGENT SURFACE (RIS) ELEMENTS
Organization Name
Inventor(s)
Ahmed Elshafie of San Diego CA (US)
Krishna Kiran Mukkavilli of San Diego CA (US)
Hwan Joon Kwon of San Diego CA (US)
CODEBOOK GENERATION FOR PRECODING RECONFIGURABLE INTELLIGENT SURFACE (RIS) ELEMENTS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18256028 titled 'CODEBOOK GENERATION FOR PRECODING RECONFIGURABLE INTELLIGENT SURFACE (RIS) ELEMENTS
Simplified Explanation
The present disclosure relates to techniques, methods, devices, systems, and non-transitory computer readable medium for generating codebooks for reconfigurable intelligent surfaces (RIS).
- A RIS controller generates a codebook for a RIS by computing weights using a discrete Fourier transform (DFT) function or a fractional Fourier transform (FrFT) function, based on reference signals (RSs) transmitted by a transmitter.
- The weights correspond to the RIS elements or a subset of the RIS elements.
- The computation of the weights may include oversampling factors that allow for a higher resolution of the weights and improved search for an optimal precoding setting.
- Different sets of weights may be used for different incoming beams.
- The RIS controller may be trained with a pair of transmitter and a receiver to identify/generate the codebook for an optimized set of weights under specific situations.
Potential applications of this technology:
- Wireless communication systems
- Internet of Things (IoT) networks
- Smart cities and infrastructure
- Satellite communication systems
- Radar systems
Problems solved by this technology:
- Improved beamforming and precoding in wireless communication systems
- Enhanced signal quality and coverage
- Increased capacity and efficiency of communication networks
- Mitigation of interference and multipath effects
- Optimization of communication performance in specific scenarios
Benefits of this technology:
- Higher data rates and improved reliability in wireless communication
- Enhanced network capacity and spectral efficiency
- Flexibility and adaptability in optimizing communication links
- Reduced power consumption and interference
- Improved overall performance and user experience in wireless networks
Original Abstract Submitted
Aspects of the present disclosure relate to techniques, methods, devices, systems, and non-transitory computer readable medium for generating codebooks for reconfigurable intelligent surfaces (RIS) s. For example, a RIS controller generates a codebook for a RIS by computing weights using a discrete Fourier transform (DFT) function or a fractional Fourier transform (FrFT) function, based on reference signals (RSs) transmitted by a transmitter. The weights correspond to the RIS elements or a subset of the RIS elements. In some aspects, the computation of the weights may include oversampling factors that allow for a higher resolution of the weights and improved search for an optimal precoding setting. Different sets of weights may be used for different incoming beams. The RIS controller may be trained with a pair of transmitter and a receiver to identify/generate the codebook for an optimized set of weights under specific situations.
