Wireless Control Resource Mapping Tile Structure
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Solution Overview
Problem
There is a need for efficient techniques to send control information in wireless communication systems, as existing methods result in overhead and do not effectively utilize control resources.
Innovation Solution
The proposed solution involves utilizing a control segment with L tiles, where each tile contains transmission units, and mapping control resources to achieve scalability, diversity, and symmetric or localized distribution across these tiles, allowing for efficient transmission and reception of control information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If control information is transmitted using conventional methods, then control channels can be established, but system overhead increases and control resource utilization becomes inefficient
Solution Approach 1:
The control segment is divided into L tiles, where each tile contains multiple transmission units. This segmentation allows control resources to be distributed across multiple spatial locations, improving resource utilization efficiency while reducing overhead through structured organization of control channels, data channels, and reference signals across the tiled structure
Solution Approach 2:
The patent introduces a two-dimensional tile structure with transmission units organized in spatial dimensions. Control resources are mapped across tiles in different patterns (localized, distributed, symmetric) to achieve diversity and improve efficiency. This dimensional organization transforms conventional flat control resource allocation into a structured multi-dimensional framework
2Reliability
If control resources are mapped to achieve diversity, then transmission reliability improves, but mapping complexity increases
Solution Approach 1:
The patent applies different mapping strategies to different control resources based on their specific requirements. Localized mapping groups control resources within the same tile for channels requiring spatial correlation, while distributed mapping spreads them across tiles for channels needing diversity. This localized quality approach optimizes reliability for each control channel type without requiring complex universal mapping logic
Solution Approach 2:
The mapping structure allows asymmetric allocation where different control channels can use different mapping patterns (localized vs distributed vs symmetric) based on their specific reliability requirements. This asymmetry enables tailored reliability optimization for each control channel without imposing uniform complexity across all mappings
3Adaptability or versatility
If scalability is achieved through tile-based structure, then system adaptability improves, but resource allocation complexity increases
Solution Approach 1:
The tile-based control segment structure serves multiple functions: it provides scalability by allowing variable numbers of tiles (L ≥ 1), supports different mapping patterns (localized, distributed, symmetric), and accommodates various control channel types. This universal structure reduces allocation complexity by providing a single framework that handles diverse requirements through parameter configuration rather than structural changes
Data Source
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AI summary
Techniques for sending control information in a wireless communication system are described. A control segment may include tiles, and each tile may include a number of transmission units. A number of control resources may be defined and mapped to the transmission units for the control segment. For symmetric mapping, multiple sets of control resources may be formed, and each batch of L consecutive sets of S control resources may be mapped to, S transmission units at the same location in the L tiles. For localized mapping, each set of S control resources may be mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, each control resource may be mapped to one transmission unit in one tile. For diversity, each control resource may be mapped to multiple (e.g., three) transmission units in at least one tile.