18497941. CODEBOOK SUBSET RESTRICTION FOR FULL-DIMENSION MIMO simplified abstract (Telefonaktiebolaget LM Ericsson (publ))
Contents
- 1 CODEBOOK SUBSET RESTRICTION FOR FULL-DIMENSION MIMO
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 CODEBOOK SUBSET RESTRICTION FOR FULL-DIMENSION MIMO - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
CODEBOOK SUBSET RESTRICTION FOR FULL-DIMENSION MIMO
Organization Name
Telefonaktiebolaget LM Ericsson (publ)
Inventor(s)
Siva Muruganathan of Stittsville (CA)
Mattias Frenne of Uppsala (SE)
Robert Mark Harrison of Grapevine TX (US)
CODEBOOK SUBSET RESTRICTION FOR FULL-DIMENSION MIMO - A simplified explanation of the abstract
This abstract first appeared for US patent application 18497941 titled 'CODEBOOK SUBSET RESTRICTION FOR FULL-DIMENSION MIMO
Simplified Explanation
The method described in the abstract involves identifying a subset of precoding matrix codewords that are not to be reported by a wireless device in channel-state-information feedback, and transmitting a bitmap to the wireless device to indicate this subset.
- The method involves selecting specific precoding matrix codewords to be excluded from feedback by a wireless device.
- A bitmap is used to represent the subset of precoding matrix codewords that are not to be reported.
- Each bit in the bitmap corresponds to a unique combination of first and second dimension indices that identify a two-dimensional beam.
Potential Applications
This technology could be applied in:
- Wireless communication systems
- 5G networks
- Beamforming technologies
Problems Solved
This technology helps in:
- Reducing feedback overhead in wireless systems
- Improving spectral efficiency
- Enhancing overall system performance
Benefits
The benefits of this technology include:
- Efficient utilization of resources
- Enhanced communication reliability
- Improved network capacity
Potential Commercial Applications
This technology could find commercial applications in:
- Telecommunications industry
- Network equipment manufacturers
- Mobile device manufacturers
Possible Prior Art
One possible prior art for this technology could be:
- Research papers on precoding matrix codewords in wireless communication systems
Unanswered Questions
How does this method impact the overall latency in wireless communication systems?
The abstract does not provide information on the latency implications of implementing this method.
What are the potential challenges in implementing this method in real-world network nodes?
The abstract does not address the practical challenges that may arise during the implementation of this method.
Original Abstract Submitted
A method, in a radio network node, comprises identifying, among a predetermined codebook of precoding matrix codewords, a subset of precoding matrix codewords that are not to be reported by the wireless device in channel-state-information, CSI, feedback, and transmitting, to the wireless device, a bitmap identifying the subset of precoding matrix codewords that are not to be reported by the wireless device; where each bit in the bitmap corresponds to only one combination of a first dimension index l′and a second dimension index l′out of the possible combinations of the first dimension index l′and the second dimension index l′, and where the first dimension index l′and the second dimension index l′identify a two-dimensional beam, the two-dimensional beam being defined by a vector of complex numbers comprised within at least one column of a precoding matrix codeword in the codebook.
