Concurrent channel state information (CSI) capability reporting using multiple codebooks

US11950263B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Chunhai Yao · Beijing, CN
• Chunxuan Ye · King of Prussia, US
• Dawei Zhang · Saratoga, US
• Ghaith N. Hattab · Santa Clara, US
• Haitong Sun · Cupertino, US
• Hong He · Sunnyvale, US
• Ismael Gutierrez Gonzalez · Sunnyvale, US
• Oghenekome Oteri · San Diego, US
• Wei Zeng · Saratoga, US
• Weidong Yang · San Diego, US
• Yeong-Sun Hwang · Germering, DE
• Yuchul Kim · San Jose, US
• Yushu Zhang · Beijing, CN

Key dates

• Filing date: Dec 19, 2022
• Grant date: Apr 2, 2024
• Expiry date: Dec 19, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W24/10
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A user equipment (UE) transmits concurrent channel state information (CSI) processing capability information to a base station. The capability information can take various forms, and is intended to constrain the base station in the types of CSI requests that can be made to the UE. For example, the UE may indicate different CSI processing capabilities for intra-CC and inter-CC cases and/or for different codebook types. The UE may also specify supported combinations of codebook types for concurrent CSI reporting. The UE may also specify maximum resources or weighting factors for different codebook types. The UE may further restrict the rank information it provides and use a priority rule for “dropping” CSI report data due to payload size restrictions. The base station may direct, or the UE may implement, improved utilization of CSI resources that are shared for multiple concurrent CSI reports. Minimum time requirements for CSI reporting may also be relaxed.