Multi-PDSCH DCI Signaling for Multiple Transport Blocks
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently signaling transmission parameters for rate-splitting techniques, leading to potential increases in signaling overhead that reduce the gains achieved by these techniques.
Innovation Solution
Implementing semi-persistent scheduling (SPS) and multi-PDSCH configuration to provide transmission parameters for different types of transport blocks, including dedicated and common transport blocks, with downlink control information (DCI) indicating parameters for rate-splitting, allowing for efficient decoding procedures that minimize signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rate-splitting techniques are implemented to enhance throughput, then network performance is improved, but signaling overhead increases
Solution Approach 1:
The patent segments the signaling process by separating semi-persistent scheduling configuration (done via higher-layer signaling) from dynamic transmission parameters (done via DCI). This segmentation allows rate-splitting parameters to be efficiently signaled only when needed, reducing overall signaling overhead while maintaining throughput enhancement benefits.
Solution Approach 2:
The patent applies preliminary action by pre-configuring rate-splitting parameters through semi-persistent scheduling before actual data transmission. This preliminary configuration establishes the foundation for rate-splitting operations, allowing dynamic transmissions to proceed with minimal additional signaling overhead.
2Adaptability or versatility
If multiple transport blocks are signaled with separate parameters, then transmission flexibility is improved, but DCI size increases
Solution Approach 1:
The patent makes the DCI format universal by designing it to handle multiple transport block types (first type for dedicated UE, second type for rate-splitting) using a unified structure. This multi-functionality allows the same DCI format to adapt to different transmission scenarios without increasing size, maintaining transmission flexibility while avoiding DCI bloat.
Solution Approach 2:
The patent applies local quality by including transmission parameters selectively based on the specific transport block type being signaled. Rather than always including all possible parameters, the DCI includes only the locally relevant parameters for each transmission scenario, optimizing the balance between flexibility and size.
Data Source
AI summary
A user equipment (UE) may receive and decode multiple types of transport blocks. The UE may receive, via the transceiver, a downlink control information (DCI) that indicates at least first transmission parameters for a first type of transport block for the UE and second transmission parameters for a second type of transport block for rate-splitting with a second UE. The UE may receive, via the transceiver, the first type of transport block during a first physical downlink shared channel (PDSCH) occasion based on the first transmission parameters. The UE may receive, via the transceiver, the second type of transport block based on the second transmission parameters and a third type of transport block based on third transmission parameters during a second PDSCH occasion.