Dynamic Coreset Pool Index Interchange for 5G Uplink
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Solution Overview
Problem
Current communication technologies face challenges in efficiently managing simultaneous multi-panel uplink transmissions in 5G New Radio (NR) networks, particularly in determining correct associations between CoresetPoolIndices and UL SRS resource sets, leading to incorrect SRS resource usage and impaired communication quality when terminal devices rotate.
Innovation Solution
The proposed solution involves a method where terminal devices receive information about changes in Coreset pool indices associated with SRS resource sets from network devices, determining the correct Coreset pool index based on this information, and adjusting SRS resource indicators for accurate PUSCH transmissions, using new codepoint fields or existing indicators to dynamically switch or interchange CoresetPoolIndex values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If terminal devices use fixed CoresetPoolIndex associations with SRS resource sets, then implementation is simple, but communication quality deteriorates when terminal devices rotate
Solution Approach 1:
The patent applies dynamics by transitioning from fixed CoresetPoolIndex associations to dynamic associations that can change based on terminal device orientation. The network device receives SRS measurements, determines the current orientation, and dynamically maps CoresetPoolIndices to appropriate SRS resource sets, allowing the system to adapt to rotation while maintaining communication quality.
Solution Approach 2:
The patent changes the parameter of CoresetPoolIndex association from static to dynamic based on orientation state. By monitoring orientation changes and adjusting the mapping between CoresetPoolIndices and SRS resource sets accordingly, the system maintains reliable communication despite terminal device rotation without complicating the implementation.
2Reliability
If terminal devices dynamically adjust CoresetPoolIndex associations based on orientation, then communication quality improves, but device complexity increases
Solution Approach 1:
The patent implements feedback by having the terminal device report SRS measurements and orientation information to the network device. The network device uses this feedback to determine the correct CoresetPoolIndex association and provides instructions back to the terminal device, enabling dynamic adaptation without requiring complex autonomous decision-making at the terminal.
Solution Approach 2:
The network device acts as an intermediary that handles the complexity of orientation-based CoresetPoolIndex mapping. Instead of the terminal device independently managing complex orientation adjustments, the network device receives measurement information, performs the mapping determination, and provides simplified instructions to the terminal device.
3Productivity
If the system supports simultaneous multi-panel uplink transmission, then throughput and reliability improve, but CoresetPoolIndex management becomes more complex
Solution Approach 1:
The patent segments the CoresetPoolIndex management by separating the functions of CoresetPoolIndex determination (performed by the network device) from the execution of SRS transmissions (performed by the terminal device). This segmentation allows the system to support simultaneous multi-panel transmission while keeping the management complexity centralized and manageable.
Solution Approach 2:
The patent makes the CoresetPoolIndex determination mechanism universal by having the network device handle all orientation-based mapping decisions regardless of the specific terminal device configuration. This multi-functional approach allows the same mechanism to support various multi-panel transmission scenarios without increasing overall system complexity.
Data Source
AI summary
Example embodiments of the present disclosure relate to an apparatus receiving an instruction to perform interchanging of an association of coreset pool indices with sounding reference signal (SRS) resource sets. The apparatus interchanges an association of a first coreset pool index with a first SRS resource set of the SRS resource sets and an association of a second coreset pool index with a second SRS resource set of the SRS resource sets to an association of the first coreset pool index with the second SRS resource set and an association of the second coreset pool index with the first SRS resource set. The apparatus transmits one or more SRS transmissions associated with the first or second coreset pool index and/or a physical uplink shared channel (PUSCH) transmission based on an SRS resource indicator (SRI) associated with the first or second coreset pool index, in accordance with the interchanged association.