17382145. SCALING AND QUANTIZATION FOR CHANNEL STATE INFORMATION REPORTING simplified abstract (QUALCOMM Incorporated)

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SCALING AND QUANTIZATION FOR CHANNEL STATE INFORMATION REPORTING

Organization Name

QUALCOMM Incorporated

Inventor(s)

Stephen Jay Shellhammer of Ramona CA (US)

Bin Tian of San Diego CA (US)

Alireza Raissinia of Monte Sereno CA (US)

Simone Merlin of San Diego CA (US)

SCALING AND QUANTIZATION FOR CHANNEL STATE INFORMATION REPORTING - A simplified explanation of the abstract

This abstract first appeared for US patent application 17382145 titled 'SCALING AND QUANTIZATION FOR CHANNEL STATE INFORMATION REPORTING

Simplified Explanation

The patent application describes methods, systems, and devices for wireless communications. Here is a simplified explanation of the abstract:

  • A station (STA) receives a null data packet (NDP) on multiple subcarriers.
  • The STA generates a channel state information (CSI) matrix for each subcarrier.
  • To minimize complexity, the STA scales each value in the CSI matrix using a power-of-two value instead of divisions.
  • The scaling is done by shifting each value in the CSI matrix.
  • The scaled values in the CSI matrix are then quantized for reporting.
  • The STA transmits the quantized, scaled values in a CSI report.

Potential applications of this technology:

  • Wireless communication systems and devices can benefit from the described methods.
  • It can be used in various wireless communication standards such as Wi-Fi, LTE, 5G, etc.
  • The technology can improve the efficiency and accuracy of channel state information reporting.

Problems solved by this technology:

  • Scaling each value in the CSI matrix using divisions can be computationally expensive.
  • The described method reduces complexity by using shifting instead of divisions.
  • This simplifies the scaling process and improves the overall efficiency of the system.

Benefits of this technology:

  • Minimizes complexity by using shifting instead of divisions for scaling.
  • Improves the efficiency of channel state information reporting.
  • Reduces computational expenses in wireless communication systems.
  • Enhances the accuracy of channel state information by quantizing the scaled values.


Original Abstract Submitted

Methods, systems, and devices for wireless communications are described. A station (STA) may receive a null data packet (NDP) on a plurality of subcarriers, and the STA may generate a channel state information (CSI) matrix for each subcarrier of the plurality of subcarriers. After generating a CSI matrix for a subcarrier, such as at least one subcarrier, the STA may scale each value in the CSI matrix using a power-of-two value to minimize complexity. Specifically, instead of scaling each value in the CSI matrix to a value between zero and one using divisions (for example, which may be computationally expensive), the STA may use shifting to scale each value in the CSI matrix. The STA may then quantize the scaled values in the CSI matrix for reporting, and the STA may transmit the quantized, scaled values in the CSI matrix in a CSI report.

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