L1-SINR Capability Signaling for Reference Signal Configuration
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Solution Overview
Problem
Current wireless communication systems face challenges in accurately determining a user equipment's (UE) capability for Layer 1 signal to interference plus noise ratio (L1-SINR) measurement, which is essential for configuring reference signals and optimizing communication parameters, due to varying UE support for different L1-SINR measurement techniques.
Innovation Solution
The method involves UE transmitting information indicating its L1-SINR measurement capability to the base station, allowing the base station to configure reference signals based on supported configurations, such as channel measurement resources with or without dedicated interference measurement resources, enabling the UE to obtain supported L1 measurements and report instantaneous SINR values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the base station configures reference signals without knowing UE capability, then the configuration process is simple, but the L1-SINR measurement accuracy deteriorates
Solution Approach 1:
The UE transmits capability information indicating supported L1-SINR measurement techniques to the base station before the base station configures reference signals. This preliminary action allows the base station to know the UE's measurement capabilities in advance, enabling it to configure appropriate reference signal resources (such as channel measurement resources and interference measurement resources) that match the UE's capabilities, thereby ensuring accurate L1-SINR measurements without complicating the overall configuration process
2Measurement precision
If the base station configures reference signals based on UE capability, then the L1-SINR measurement accuracy is improved, but the device complexity increases
Solution Approach 1:
The UE autonomously determines its own L1-SINR measurement capabilities and transmits this capability information to the base station. The base station then uses this information to automatically configure appropriate reference signal resources without requiring manual intervention or complex negotiation. This self-service approach enables accurate capability-based configuration while keeping the process straightforward and efficient
3Measurement precision
If the UE transmits capability information, then the reference signal configuration accuracy is improved, but the uplink signaling overhead increases
Solution Approach 1:
The capability information is segmented into specific indicators for different L1-SINR measurement techniques (such as techniques involving channel measurement resources with or without dedicated interference measurement resources). This segmentation allows the UE to precisely indicate only the relevant capabilities it possesses, avoiding transmission of unnecessary information and reducing uplink signaling overhead while maintaining configuration accuracy
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, information indicating a Layer 1 signal to interference plus noise ratio (L1-SINR) measurement capability of the UE. The UE may receive, from the base station, a reference signal carried on one or more resources based at least in part on the L1-SINR measurement capability. Numerous other aspects are provided.