Hypercell System Information Segmentation for Targeted UE Delivery
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Solution Overview
Problem
In hypercell deployments, efficiently distributing system information (SI) with local scope to affected user equipment (UEs) is challenging, as existing methods transmit unnecessary SI to all UEs, wasting network resources and affecting communication efficiency.
Innovation Solution
Implementing a method where system information with local scope is provided only to UEs that are affected by it, using a hypercell controller to manage and broadcast local SI specific to communications beams, reducing unnecessary transmissions and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If system information is broadcast to all UEs in hypercell deployment, then all UEs can access the information, but network resources are wasted signaling information to UEs that are not impacted
Solution Approach 1:
The patent segments system information into global SI (applicable to all UEs) and local SI (applicable to specific UEs or groups). The global SI is broadcast to all UEs, while local SI is selectively provided only to affected UEs through targeted signaling, thereby avoiding waste of network resources while ensuring all UEs receive necessary information.
Solution Approach 2:
The patent applies local quality by providing different types of system information to different UEs based on their specific needs and locations. Local SI is transmitted only to UEs that are actually affected by it, rather than broadcasting to all UEs uniformly, thus optimizing network resource utilization while maintaining information accessibility where needed.
2Loss of information
If local scope SI is transmitted to all UEs, then information completeness is ensured, but communication efficiency deteriorates due to unnecessary signaling
Solution Approach 1:
The patent divides system information into global SI and local SI components. Global SI contains information applicable to all UEs and is broadcast universally, while local SI contains UE-specific information that is selectively transmitted only to affected UEs. This segmentation ensures information completeness for each UE without the overhead of broadcasting all information to everyone.
Solution Approach 2:
The patent applies partial action by transmitting only the necessary portion of system information to each UE. Instead of broadcasting complete local SI to all UEs (excessive action), the system transmits only the relevant local SI to affected UEs (partial action), thereby maintaining information completeness where needed while improving communication efficiency.
3Device complexity
If system information management is centralized, then coordination is simplified, but device complexity increases at the controller
Solution Approach 1:
The patent segments system information management into centralized global SI management and distributed local SI management. The hypercell controller centrally manages global SI and coordinates with TRPs, while local SI is generated and managed by individual TRPs or DUs. This segmentation reduces controller complexity by distributing management responsibilities while maintaining coordination simplicity through standardized interfaces.
Data Source
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AI summary
A method for system information (SI) management includes maintaining global SI applicable to an entirety of a hypercell controlled by a controller and local SI associated with at least one distributed controller of the hypercell, generating a global local SI indicator (GLSII) indicating usage of the local SI in the hypercell, and broadcasting the global SI including the GLSII.