Wireless Control Channel Scheduling Across Multiple Carriers

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing and switching between self-carrier scheduling and cross-carrier scheduling, leading to suboptimal reliability and control signaling throughput.

Innovation Solution

Implementing dynamic control signaling to activate or deactivate cross-carrier scheduling, and explicitly or implicitly indicating search spaces and bandwidth parts for self-carrier or cross-carrier scheduling, enhancing search space monitoring and carrier scheduling flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If cross-carrier scheduling is used to improve control signaling throughput, then the scheduling efficiency is improved, but the reliability of self-carrier scheduling deteriorates

Engineering Contradiction:

Improvecontrol signaling throughputVSAvoidreliability of self-carrier scheduling

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent implements dynamic switching between self-carrier scheduling and cross-carrier scheduling modes based on real-time channel conditions and traffic requirements. The network can flexibly activate or deactivate cross-carrier scheduling for different cells and carriers, allowing the system to adapt to changing conditions and maintain both high throughput and reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies different scheduling modes to different cells and carriers based on their specific requirements. Cross-carrier scheduling can be enabled for cells needing high throughput while self-carrier scheduling is maintained for cells requiring high reliability. This localized approach allows each cell to operate in its optimal mode without affecting others.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If multiple search spaces are monitored to improve scheduling flexibility, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:

Improvescheduling flexibilityVSAvoidsearch space monitoring complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the search space monitoring into multiple independent search spaces, each associated with specific carriers or cells. This segmentation allows the device to monitor different search spaces for different purposes, improving flexibility while managing complexity through organized, modular monitoring structures.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent creates search spaces that can serve multiple functions - the same search space structure is used for both self-carrier scheduling and cross-carrier scheduling. This universal approach allows the system to maintain flexibility across different scheduling modes without requiring entirely separate monitoring mechanisms for each mode.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12634951B2Scheduling wireless communications

Publication Date: 2026.05.19 COMCAST CABLE COMM LLC

AI summary

Control information may be used to schedule communications between a wireless device and a base station. The wireless device may monitor control channels associated with one or more cells to receive the control information.