Single-Control Downlink Scheduling With Beam and HARQ Alignment

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently scheduling multiple downlink transmissions while maintaining accurate signal transmission and reducing power consumption in user equipment devices.

Innovation Solution

Implementing techniques for determining a beam configuration, skipping control channel monitoring occasions, and configuring opportunities for control information within multiple downlink transport blocks scheduled by a single downlink control transmission, along with hybrid automatic repeat request feedback to align codebook sizes between wireless devices and cellular base stations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple downlink transmissions are scheduled using separate downlink control transmissions, then scheduling accuracy and signal transmission reliability are improved, but control channel overhead and power consumption increase

Engineering Contradiction:

Improvesignal transmission accuracyVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent combines multiple downlink control transmissions into a single downlink control transmission that schedules multiple downlink transmissions. This merging approach reduces the number of control channel transmissions, thereby reducing power consumption while maintaining scheduling accuracy through unified control signaling.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single downlink control transmission is designed to perform multiple scheduling functions simultaneously, scheduling multiple downlink transmissions for different transport blocks. This multi-functionality allows the system to maintain comprehensive control while reducing overall control channel overhead and power consumption.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple downlink control transmissions are used to schedule multiple downlink transmissions, then scheduling flexibility and resource allocation precision are improved, but control channel monitoring complexity and device processing load increase

Engineering Contradiction:

Improvescheduling flexibilityVSAvoidcontrol channel monitoring complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple control transmissions into one unified control transmission that contains scheduling information for multiple downlink transmissions. This reduces the number of control channel monitoring occasions the device must track, simplifying monitoring complexity while preserving scheduling flexibility through consolidated control information.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single downlink control transmission is structured to contain segmented scheduling information for multiple transport blocks, allowing the device to process each scheduled transmission independently while reducing overall monitoring complexity. The control information is divided into manageable units within the unified transmission.

Inventive Principle:

Principle #1Segmentation

3Measurement precision

If separate downlink control transmissions schedule each downlink transmission individually, then codebook size alignment between device and base station is improved, but network resource utilization efficiency decreases

Engineering Contradiction:

Improvecodebook size alignmentVSAvoidnetwork resource utilization efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent merges multiple scheduling operations into a single downlink control transmission that efficiently allocates resources for multiple downlink transmissions. This unified approach improves network resource utilization by reducing control channel overhead and enabling more efficient resource block allocation, while maintaining codebook size alignment through coordinated scheduling information.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4094521B1Scheduling multiple downlink transmissions using a single downlink control transmission

Publication Date: 2025.12.31 APPLE INC

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AI summary

This disclosure relates to techniques for scheduling multiple downlink transmissions using a single downlink control transmission in a wireless communication system. A wireless device may determine a beam configuration for use for receiving multiple downlink transport blocks scheduled by a single downlink control transmission. In some instances, the wireless device may be configured to skip one or more control channel monitoring occasions that overlap with the downlink transport blocks. The wireless device may provide hybrid automatic repeat request feedback for the downlink transport blocks.