Adaptive Receive Filter Configuration for Multi-TRP Wireless Reception
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Solution Overview
Problem
In wireless communication systems, the efficiency of resource utilization is degraded due to the UE's inability to efficiently receive signals from multiple TRPs, as it typically uses only one receive filter for downlink assignments, limiting the effective use of available resources.
Innovation Solution
A communication device that determines and uses specific receive filters based on DCI and TCI state information to receive PDSCH, allowing for efficient handling of downlink signals by identifying the appropriate Rx filters for different TCI states and CORESET configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the UE uses one receive filter to receive signal from TRPs, then the device complexity is reduced, but the resource utilization efficiency is degraded
Solution Approach 1:
The patent applies dynamics by making the receive filter configuration adaptive rather than static. The UE dynamically selects and switches between multiple receive filters based on real-time TCI state indications in DCI messages. This allows the system to optimize resource utilization efficiency by matching the appropriate receive filter to the current transmission configuration, while keeping the implementation manageable through standardized switching mechanisms.
Solution Approach 2:
The patent changes the parameter of receive filter configuration from a fixed single-filter setup to a multi-filter system with configurable states. By introducing TCI states that map to different receive filters and allowing dynamic indication of active states through DCI, the system transforms the static parameter into a dynamic one, thereby improving resource utilization without excessive complexity increase.
2Productivity
If the UE uses multiple receive filters to communicate with TRPs, then the resource utilization efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent segments the receive filter management into distinct, independently controllable units. Each TCI state corresponds to a specific receive filter configuration, and the DCI message segments the indication process into a codepoint that maps to specific TCI states. This segmentation allows the UE to manage multiple receive filters through modular, standardized procedures rather than handling them as a monolithic complex system.
Solution Approach 2:
The patent creates a universal framework where a single DCI message structure with a TCI field can indicate multiple TCI states, which in turn can indicate multiple receive filters. This multi-functional indication mechanism allows the same signaling structure to handle various scenarios (single TRP, multiple TRPs, different beam configurations) without requiring separate complex management procedures for each case.
Data Source
AI summary
A communication device for handling a reception comprises at least one storage device and at least one processing circuit, coupled to the at least one storage device. The at least one storage device stores instructions, and the at least one processing circuit is configured to execute the instructions of: receiving a DCI from a control resource set; and receiving a PDSCH according to the DCI, wherein the DCI comprising a TCI field, and the TCI field indicating a TCI codepoint corresponding to a first TCI state and a second TCI state.