CSI Reporting with Measurement Hypothesis for Multi-TRP Scheduling
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Solution Overview
Problem
Existing communication systems face challenges in efficiently feeding back Channel State Information (CSI) to network devices for coordinated Transmission Reception Points (TRPs), particularly in scenarios involving multiple TRPs, which affects scheduling accuracy and throughput.
Innovation Solution
The terminal device indicates a CSI measurement hypothesis through a CSI report, including rank information, to facilitate better scheduling by the network device, using multiple Channel Measurement Resources (CMR) sets to measure CSI from single or multiple TRPs, and optimizing the feedback mechanism to minimize signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication protocols are supported to improve compatibility, then communication versatility is improved, but protocol parsing complexity increases
Solution Approach 1:
The protocol stack is segmented into independent processing modules, each handling specific protocol layers. The processor parses different communication protocols through separate modular components rather than monolithic code, reducing overall complexity while maintaining multi-protocol support capability
Solution Approach 2:
A universal protocol parsing framework is implemented that can handle multiple communication protocols through a common architecture. The system uses a standardized interface layer that works across different protocols, reducing the need for separate complex parsing logic for each protocol type
2Speed
If data is cached in memory to improve access speed, then data access speed is improved, but memory occupation increases
Solution Approach 1:
The caching strategy applies different cache sizes and retention policies to different data types based on their access patterns. Frequently accessed small data structures receive higher cache priority, while less critical data uses smaller cache allocations, optimizing memory usage while maintaining speed for critical operations
Solution Approach 2:
The system implements selective caching that caches only the most frequently accessed data structures and parameters, rather than caching all possible data. This partial caching approach achieves sufficient speed improvement for critical paths without the memory overhead of comprehensive caching
3Productivity
If global variables are used to reduce parameter passing, then communication efficiency is improved, but thread safety decreases
Solution Approach 1:
Thread-local storage acts as an intermediary between global variables and thread-specific data needs. Each thread has its own isolated data space that mimics global variable access speed, eliminating race conditions while maintaining communication efficiency. The thread-local storage serves as a mediator that provides fast access without the safety issues of shared global state
Solution Approach 2:
The global variable space is segmented into thread-specific instances, where each thread operates on its own copy of commonly used parameters. This segmentation eliminates conflicts between threads while maintaining the efficiency benefits of having data locally available without constant parameter passing
Data Source
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AI summary
The present application relates to an information processing method and a terminal device. The information processing method comprises: the terminal device indicates a measurement hypothesis of CSI by means of first information in CSI reporting; and the terminal device indicates a rank under the measurement hypothesis by means of rank indication (RI) information in the CSI reporting. In embodiments of the present disclosure, the terminal device can indicate the measurement hypothesis of the CSI on the basis of the first information in the CSI reporting, and can further indicate the rank under the measurement hypothesis by means of the RI information under a corresponding measurement hypothesis, such that a network side obtains currently recommended measurement hypothesis and RI information, thereby improving the throughput of downlink transmission.