18411069. Methods and Apparatuses for Codebook Restriction for Type-II Feedback Reporting and Higher Layer Configuration and Reporting for Linear Combination Codebook in a Wireless Communications Network simplified abstract (KONINKLIJKE PHILIPS N.V.)

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Methods and Apparatuses for Codebook Restriction for Type-II Feedback Reporting and Higher Layer Configuration and Reporting for Linear Combination Codebook in a Wireless Communications Network

Organization Name

KONINKLIJKE PHILIPS N.V.

Inventor(s)

Ramireddy Venkatesh of Eindhoven (NL)

Marcus Grossmann of Eindhoven (NL)

Markus Landmann of EINDHOVEN (NL)

Methods and Apparatuses for Codebook Restriction for Type-II Feedback Reporting and Higher Layer Configuration and Reporting for Linear Combination Codebook in a Wireless Communications Network - A simplified explanation of the abstract

This abstract first appeared for US patent application 18411069 titled 'Methods and Apparatuses for Codebook Restriction for Type-II Feedback Reporting and Higher Layer Configuration and Reporting for Linear Combination Codebook in a Wireless Communications Network

Simplified Explanation

The patent application describes a method performed by a User Equipment (UE) in a wireless communication system to provide Channel State Information (CSI) feedback to a gNB or radio network node. The UE estimates the MIMO channel between the gNB and itself, calculates a precoder matrix based on a performance metric, and reports the CSI feedback to the gNB.

  • The UE estimates the MIMO channel between the gNB and itself based on received DL reference signals for configured resource blocks.
  • The UE calculates a precoder matrix for a number of antenna ports of the gNB and configured subbands, based on two codebooks and a set of combination coefficients for complex scaling/combining vectors selected from the codebooks.
  • The UE reports CSI feedback, Precoder Matrix Indicator (PMI), and/or PMI/RI to the gNB, indicating the precoder matrix for the configured antenna ports and resource blocks.

Potential Applications

  • 5G and beyond wireless communication systems
  • Massive MIMO technology
  • Beamforming and precoding techniques

Problems Solved

  • Efficient utilization of MIMO channels
  • Improved signal quality and throughput
  • Enhanced communication reliability

Benefits

  • Higher data rates
  • Better coverage and connectivity
  • Enhanced user experience

Potential Commercial Applications

  • Telecommunication companies
  • Network equipment manufacturers
  • IoT device manufacturers

Possible Prior Art

One possible prior art could be related to previous methods of CSI feedback and precoding techniques in wireless communication systems.

Unanswered Questions

How does this method impact network capacity in dense urban environments?

The method's impact on network capacity in dense urban environments is not explicitly addressed in the abstract. Further studies or field tests may be needed to determine the specific effects.

What are the potential implications of this method on battery life for UE devices?

The abstract does not mention the potential implications of this method on battery life for UE devices. It would be interesting to investigate whether the additional processing required for estimating MIMO channels and calculating precoder matrices has any significant impact on battery life.


Original Abstract Submitted

Method performed by a UE for providing a channel state information (CSI) feedback in a wireless communication system including at least the UE and a gNB or a radio network node. The UE is operative to: estimate the MIMO channel between the gNB and the UE based on received DL reference signals for the configured resource blocks. The UE is further operative to calculate, based on a performance metric, a precoder matrix, for a number of antenna ports of the gNB and configured subbands, the precoder matrix being based on two codebooks and a set of combination coefficients for complex scaling/combining one or more of vectors selected from a first codebook and a second codebook, and the UE is operative to report a CSI feedback and/or a PMI and/or a PMI/RI, to the gNB, used to indicate the precoder matrix for the configured antenna ports and resource blocks.

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