Single-Slot DCI and PDSCH Processing to Cut Blind Decoding

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Solution Overview

Problem

Existing wireless communications systems face inefficiencies in processing downlink control information (DCI) due to blind decoding of multiple candidates, leading to suboptimal resource allocation and processing inefficiencies at the user equipment (UE).

Innovation Solution

Combining downlink control information (DCI) and downlink shared channel (PDSCH) in a single time resource, allowing for unified processing of unicast DCI, unicast PDSCH, and unicast DCI modulated with downlink data transmissions, thereby reducing blind decoding and enhancing processing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If blind decoding of multiple DCI candidates is performed, then DCI processing completeness is improved, but processing time and computational burden increase

Engineering Contradiction:

ImproveDCI processing completenessVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent combines multiple DCI types (unicast DCI, unicast PDSCH, and unicast DCI modulated with downlink data transmissions) into a single unified processing operation within one time resource. This merging eliminates the need for separate blind decoding of multiple DCI candidates while maintaining complete DCI processing coverage, thereby reducing processing time without sacrificing completeness.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The unified processing mechanism serves multiple functions simultaneously: it processes unicast DCI, unicast PDSCH, and modulated DCI with downlink data transmissions all within a single time resource. This multi-functionality approach allows the system to handle diverse DCI types through one processing operation, reducing the computational burden and time required compared to handling each type separately.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Manufacturing precision

If multiple DCI types are processed separately, then processing accuracy is improved, but device complexity increases

Engineering Contradiction:

Improveprocessing accuracyVSAvoidprocessing complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges the processing of multiple DCI types into a single unified operation, reducing device complexity while maintaining processing accuracy. The unified processing mechanism handles unicast DCI, unicast PDSCH, and modulated DCI with downlink data transmissions through one consolidated operation, eliminating the need for separate processing chains and reducing overall system complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The unified processing mechanism is designed to handle multiple DCI types through a single multi-functional operation. This approach maintains processing accuracy for each DCI type while reducing device complexity by eliminating redundant processing stages and simplifying the overall processing architecture.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If unified processing of multiple DCI types is implemented, then processing efficiency is improved, but processing capacity requirements increase

Engineering Contradiction:

Improveprocessing efficiencyVSAvoidprocessing capacity

Core Design Contradiction:

ProductivityVSPower

Solution Approach 1:

The patent combines multiple DCI processing operations into one unified processing operation that completes within a single time resource. This merging improves processing efficiency by eliminating sequential processing steps while the processing capacity requirement is managed through the unified architecture that handles multiple DCI types simultaneously rather than requiring separate high-capacity processing paths for each type.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The unified processing mechanism provides multi-functionality to handle diverse DCI types within a single operation, improving processing efficiency by reducing the number of separate processing cycles needed. The processing capacity is optimized through this multi-functional design that consolidates multiple processing tasks into one operation rather than requiring multiple dedicated high-capacity processing channels.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250344210A1Combined downlink control information and downlink shared channel communicated in a single time resource

Publication Date: 2025.11.06 QUALCOMM INC

AI summary

Methods, systems, and devices for wireless communications are described. A user equipment (UE) receives a first control message scheduling downlink shared channel resource allocation types for processing in a single time resource, where the downlink shared channel resource allocation types include one or more of unicast downlink control information (DCI) carried over a downlink shared channel, unicast downlink shared channel data carried over the downlink shared channel, or unicast DCI modulated with downlink data transmissions carried over the downlink shared channel. The UE receives a second control message indicating additional control information for one or more of the plurality of downlink shared channel resource allocation types. The UE processes the multiple downlink shared channel resource allocation types within the single time resource. The UE may communicate with a network entity based at least in part on the plurality of downlink shared channel resource allocation types.