PDCCH Reception Limits for Coordinated 5G Scheduling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing control channel detection complexity to match coordinated communication transmission conditions, particularly in environments supporting coordinated multi-point transmission and carrier aggregation.
Innovation Solution
The method involves determining restrictions on the maximum number of PDCCH candidates and CCEs to enhance transmission and reception efficiency in coordinated communication scenarios, such as non-coherent joint transmission and carrier aggregation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If coordinated multi-point transmission and carrier aggregation are supported, then transmission efficiency is improved, but control channel detection complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the maximum number of PDCCH candidates and CCEs based on the active DL BWP configuration. When coordinated multi-point transmission or carrier aggregation is detected, the system modifies these parameters to match the transmission conditions, thereby resolving the contradiction between transmission efficiency and detection complexity.
Solution Approach 2:
The patent implements dynamics by making the control channel detection parameters adaptive rather than fixed. The system continuously monitors the active DL BWP configuration and adjusts the maximum number of PDCCH candidates and CCEs in real-time, allowing the terminal to adapt to changing transmission conditions and optimize the balance between efficiency and complexity.
2Adaptability or versatility
If the maximum number of PDCCH candidates and CCEs is increased, then coordinated communication capability is improved, but terminal processing load increases
Solution Approach 1:
The patent uses parameter changes to adjust the maximum number of PDCCH candidates and CCEs based on the actual transmission conditions. By modifying these parameters dynamically rather than maintaining fixed high values, the system improves coordinated communication capability when needed while reducing terminal processing load during simpler transmission scenarios.
Solution Approach 2:
The patent applies partial action by configuring the maximum number of PDCCH candidates and CCEs based on the actual needs of the active DL BWP rather than always using maximum possible values. This allows the terminal to perform only the necessary processing for the current transmission conditions, reducing unnecessary processing load while maintaining adequate coordinated communication capability.
Data Source
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AI summary
The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure discloses a signaling method and apparatus for properly increasing a control channel detection complexity of a terminal in order to efficiently detect a control channel for performing coordinated transmission such as non-coherent joint transmission (NC-JT).