Coordinated Multi-Point Transmission Parameter Determination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Coordinated multi-point transmission in wireless communication systems faces uncertainty in parameter values, affecting spectrum efficiency and robustness.
Innovation Solution
A parameter determination method and device that determines a first parameter and a second parameter, specifically addressing the uncertainty by configuring HARQ-ACK feedback types and scheduling schemes for coordinated multi-point transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If coordinated multi-point transmission is implemented to improve spectrum efficiency and robustness, then system performance is improved, but parameter uncertainty arises affecting reliable operation
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmission parameters including selecting between different HARQ-ACK feedback types (separated or joint feedback), configuring multiple PDCCHs with different search space sets, and adapting transmission schemes based on channel conditions. This allows the system to optimize spectrum efficiency while maintaining reliable operation by changing parameters according to actual transmission needs rather than using fixed uncertain values
Solution Approach 2:
The patent implements dynamics by enabling flexible configuration of coordinated multi-point transmission parameters. The system can dynamically switch between separated HARQ-ACK feedback and joint HARQ-ACK feedback modes, adjust the number and configuration of PDCCHs, and adapt search space set configurations based on real-time channel conditions and traffic requirements. This dynamic adaptability resolves the contradiction by allowing the system to maintain reliability through adaptive parameter selection while achieving high spectrum efficiency when conditions permit
2Reliability
If multiple PDCCHs are configured for coordinated multi-point transmission to enhance robustness, then system reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the coordinated multi-point transmission configuration into multiple independent PDCCH configurations, each associated with different search space sets. Instead of managing one complex unified configuration, the system segments the control channel resources into multiple manageable PDCCH instances with distinct configurations. This segmentation reduces overall device complexity by allowing independent optimization and management of each PDCCH while collectively achieving enhanced transmission robustness
Solution Approach 2:
The patent implements preliminary action by pre-configuring multiple search space sets and associating them with different PDCCHs before transmission begins. The system prepares multiple candidate configurations in advance, including different search space parameters, monitoring occasions, and associated PDCCH resources. This preliminary configuration reduces real-time decision complexity during actual transmission while ensuring robustness through pre-established multiple transmission paths
Data Source
AI summary
Provided are a parameter determination method and device for coordinated multi-point transmission. The parameter determination method includes steps described below. A first parameter is determined, and a second parameter is determined according to the first parameter. The uncertainty problem of some parameter values in the coordinated multi-point transmission in the related art is solved.