TRS Availability Bitmaps for Selective Resource Set Signaling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing the availability and utilization of tracking reference signals (TRS) in wireless networks, particularly in scenarios involving multiple TRS resource sets, which can lead to inefficiencies and suboptimal resource allocation.
Innovation Solution
Implementing a mechanism for indicating the availability of a subset of TRS resource sets using a TRS availability indication bitmap, allowing network nodes and user equipment to efficiently manage and utilize TRS resources based on availability indications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a full bitmap indicating availability of all TRS resource sets is transmitted, then complete TRS availability information is provided to UEs, but signaling overhead and network resources are wasted when not all TRS resources are needed
Solution Approach 1:
The patent divides the TRS resource sets into multiple groups and transmits separate availability bitmaps for each group rather than a single comprehensive bitmap. This segmentation allows the network to selectively indicate availability of only relevant TRS groups, reducing signaling overhead while maintaining necessary information completeness for UE operations.
Solution Approach 2:
The patent implements partial action by transmitting availability information for only a subset of TRS resource sets at any given time, rather than always transmitting complete availability information for all TRS resources. This partial transmission approach reduces signaling overhead while providing sufficient information for UE to perform required tracking functions.
2Reliability
If TRS resources are allocated for all possible scenarios, then UEs can always perform tracking functions, but network resources are inefficiently utilized when fewer TRS resources are actually needed
Solution Approach 1:
The patent implements dynamic TRS resource allocation where the network selectively activates and indicates availability of specific TRS resource groups based on current network conditions, UE requirements, and traffic patterns. This dynamic approach ensures TRS availability when needed while optimizing network resource utilization by not maintaining all TRS resources in active state continuously.
Solution Approach 2:
The patent changes the availability parameter of TRS resource sets dynamically by transmitting updated availability bitmaps that reflect current network conditions. This allows the system to adapt TRS resource availability according to actual tracking needs, ensuring reliability when required while improving overall network resource efficiency through parameter optimization.
3Adaptability or versatility
If multiple TRS resource sets are configured for different UEs, then individualized tracking support is provided, but complexity in managing and indicating availability increases
Solution Approach 1:
The patent segments TRS resource sets into multiple groups that can be individually configured and managed. Each group can be associated with specific UE categories or requirements, allowing individualized tracking support while simplifying management through structured grouping. The segmented approach makes it easier to track and indicate availability of specific groups rather than managing all TRS resources as a single complex entity.
Solution Approach 2:
The patent introduces a grouping dimension to TRS resource management, organizing TRS resources into hierarchical groups that can be selectively activated. This additional organizational dimension simplifies the complexity of managing multiple UE-specific TRS configurations by providing a structured framework for configuration, activation, and availability indication across multiple UEs.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, an indication of a subset of tracking reference signal (TRS) resource sets from a plurality of TRS resource sets. The UE may receive, from the network node, a TRS availability indication bitmap that indicates an availability of a TRS associated with the subset of TRS resource sets. The UE may determine that the TRS is available based at least in part on the TRS availability indication bitmap. The UE may receive, from the network node, the TRS based at least in part on the TRS availability indication bitmap indicating that the TRS is available. Numerous other aspects are described.