Methods of CSI reporting for rate split downlink transmission
By implementing separate CSI feedback mechanisms for common and WTRU-specific messages, the WTRU enhances CSI reporting accuracy and efficiency, addressing the challenge of timely CSI in multi-user multi-antenna systems for improved downlink transmission.
WO2026136163A1PCT designated stage Publication Date: 2026-06-25INTERDIGITAL PATENT HOLDINGS INC
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- INTERDIGITAL PATENT HOLDINGS INC
- Filing Date
- 2025-12-12
- Publication Date
- 2026-06-25
Smart Images
Figure US2025059407_25062026_PF_FP_ABST
Abstract
A wireless transmit / receive unit (WTRU) may receive configuration information. The configuration information may include a first channel state information (CSI) configuration information and / or a second CSI configuration. The first CSI configuration information may be associated with reception of common message of rate splitting-based (RS-based) transmission. The second CSI configuration may be associated with reception of WTRU-specific messages of RS-based transmission. The WTRU may determine at least a first CSI feedback based on, for example, the first CSI configuration associated with the common messages of RS-based transmission. The WTRU may determine at least a second CSI feedback based on, for example, the second CSI configuration associated with the WTRU-specific messages of RS-based transmission. The WTRU may transmit at least one CSI report. The at least one CSI report may include the at least first CSI feedback and / or the at least one second CSI feedback.
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