17894708. DETERMINING A SUB-BAND SIZE FOR CHANNEL STATE INFORMATION REPORTING BASED ON AN ACTIVE ANTENNA PORT CONFIGURATION simplified abstract (QUALCOMM Incorporated)

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DETERMINING A SUB-BAND SIZE FOR CHANNEL STATE INFORMATION REPORTING BASED ON AN ACTIVE ANTENNA PORT CONFIGURATION

Organization Name

QUALCOMM Incorporated

Inventor(s)

Ahmed Attia Abotabl of San Diego CA (US)

Hung Dinh Ly of San Diego CA (US)

Yu Zhang of San Diego CA (US)

DETERMINING A SUB-BAND SIZE FOR CHANNEL STATE INFORMATION REPORTING BASED ON AN ACTIVE ANTENNA PORT CONFIGURATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 17894708 titled 'DETERMINING A SUB-BAND SIZE FOR CHANNEL STATE INFORMATION REPORTING BASED ON AN ACTIVE ANTENNA PORT CONFIGURATION

Simplified Explanation

The patent application describes methods, systems, and devices for wireless communications, specifically focusing on updating channel state information reporting granularity based on antenna port configuration updates.

  • User equipment (UE) may use a mapping to update channel state information (CSI) reporting granularity based on an antenna port configuration update.
  • The UE stores a mapping from different antenna port configurations to respective sub-band sizes for CSI reporting.
  • A network entity may configure the UE with the mapping or the UE may be pre-configured with the mapping.
  • When the UE receives control signaling indicating an antenna port configuration update, it uses the mapping to determine the corresponding update to sub-band size granularity for CSI reporting.
  • The UE then uses the determined sub-band size for performing CSI measurements on reference signals and reporting the CSI measurements in a CSI report to the network entity.
      1. Potential Applications
  • 5G and future wireless communication systems
  • IoT devices requiring efficient and accurate channel state information reporting
      1. Problems Solved
  • Efficient updating of channel state information reporting granularity
  • Improved accuracy in CSI reporting for better network performance
      1. Benefits
  • Enhanced network efficiency
  • Improved reliability of wireless communications
  • Better utilization of resources in wireless networks


Original Abstract Submitted

Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may use a mapping to update channel state information (CSI) reporting granularity based on an antenna port configuration update. For example, the UE may store a mapping from different antenna port configurations to respective sub-band sizes for CSI reporting. In some examples, a network entity may configure the UE with the mapping. In some other examples, the UE may be pre-configured with the mapping. If the UE receives control signaling, such as downlink control information (DCI) signaling, indicating an antenna port configuration update at the network entity, the UE may use the mapping to determine a corresponding update to sub-band size granularity for CSI reporting. The UE may use the determined sub-band size for performing CSI measurements on reference signals and reporting the CSI measurements in a CSI report to the network entity.

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