Wireless Node Reference Signal Resource Determination
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Solution Overview
Problem
In wireless communication systems, particularly in the NR system, determining a suitable transmission occasion for RS resources used for radio link quality measurement is challenging, leading to inefficiencies in resource utilization and increased latency, especially in duplex modes like SBFD where severe interference occurs.
Innovation Solution
A method where a reference information block and a first information block are used to determine a first RS resource set for radio link quality measurement, with the transmission occasion of the RS resource being orthogonal to the reference time-domain resource set, allowing flexible adjustment of radio link quality evaluation and monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If half-duplex mode is used for TDD spectrum, then self-interference is avoided and cross-link interference is mitigated, but resource utilization decreases and latency increases
Solution Approach 1:
The patent applies dynamic time-domain resource allocation by configuring reference time-domain resource sets that can be dynamically adjusted based on duplex mode. The transmission occasion of RS resources is determined relative to these configurable reference sets, enabling the system to switch between half-duplex and flexible duplex modes without fixed constraints, thereby optimizing resource utilization while managing interference through adaptive timing configurations.
2Productivity
If flexible duplex mode or SBFD is implemented, then resource utilization improves and latency decreases, but severe self-interference and cross-link interference occur
Solution Approach 1:
The patent applies local quality by making the RS resource transmission occasions locally optimized relative to the reference time-domain resource set. By determining transmission occasions based on offsets from specifically configured reference sets, the system can locally adapt to interference conditions in different time regions, selecting measurement occasions that avoid severe interference while maintaining overall flexible duplex operation.
3Measurement precision
If transmission occasion of RS resources is not properly determined, then radio link quality measurement accuracy decreases, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring reference time-domain resource sets that establish a structured framework for determining RS transmission occasions. This preliminary configuration simplifies the measurement process by providing a ready-made reference structure, eliminating the need for complex real-time calculations while ensuring accurate identification of suitable measurement occasions relative to the pre-established reference points.
Data Source
AI summary
The present application provides a method and device in a node for wireless communications. A first node receives a reference information block and a first information block; wherein the reference information block is used to determine a first RS resource set used for a radio link quality measurement, and the first RS resource set comprises at least one RS resource; the first information block is used to determine a reference time-domain resource set; a first RS resource is an RS resource in the first RS resource set, and a transmission occasion of the first RS resource used for the radio link quality measurement depends on the reference time-domain resource set.