Shared Channel Measurement Resources for CSI Transmission Hypotheses
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently sharing channel measurement resources between different transmission hypotheses, such as joint and single transmission hypotheses, due to limitations in UE capabilities, particularly in supporting simultaneous multi-beam reception.
Innovation Solution
A UE indicates its capability to share channel measurement resources between multiple hypotheses to a base station, allowing the base station to configure appropriate CSI reporting configurations, including sharing aspects like CPU, resource, and port occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the UE does not support simultaneous multi-beam reception, then the UE can simplify its reception capabilities and reduce complexity, but the utilization of channel measurement resources becomes suboptimal and CSI reporting efficiency deteriorates
Solution Approach 1:
The patent enables channel measurement resources to serve multiple transmission hypotheses (both joint transmission and single transmission) simultaneously. The base station configures the UE with channel measurement resources that can be reused across different hypothesis types, allowing the same physical resources to fulfill multiple reporting purposes and improving overall resource utilization efficiency
2Productivity
If the UE indicates capability to share channel measurement resources between joint and single transmission hypotheses, then resource utilization improves and CSI reporting efficiency increases, but the processing burden on the UE and base station increases
Solution Approach 1:
The patent introduces dynamic capability indication where the UE can signal its support for channel measurement resource sharing between different transmission hypotheses. The base station then adapts its configuration dynamically based on this capability indication, adjusting the level of resource sharing and processing requirements to match the UE's actual capabilities, thereby optimizing the balance between efficiency and complexity
3Measurement precision
If separate channel measurement resources are allocated for joint and single transmission hypotheses, then measurement accuracy is maintained, but resource utilization becomes inefficient and spectral efficiency decreases
Solution Approach 1:
The patent merges the channel measurement resource allocation for joint transmission hypotheses and single transmission hypotheses into a shared resource pool. The base station configures overlaying channel measurement resources that can be jointly used by both hypothesis types, eliminating the need for separate dedicated resources and thereby improving spectral efficiency while maintaining measurement accuracy through proper resource configuration
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may indicate, to a base station, a capability of the UE to use a channel measurement resource for both a joint transmission hypothesis and a single transmission hypothesis. The UE may receive, based on indicating the capability of the UE, a configuration message indicating a first channel measurement resource that is associated with a first transmission configuration indicator state and that is configured for a first joint transmission hypothesis. The UE may obtain a channel measurement for both the first joint transmission hypothesis and a first single transmission hypothesis using the first channel measurement resource based on the configuration message.