CSI-IM Resource Configuration for Wireless Communication
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Solution Overview
Problem
Existing solutions for Channel State Information - Interference Measurement (CSI-IM) resources in wireless communication systems, particularly in Subband Full Duplex (SBFD) scenarios, are no longer applicable and face challenges in reducing hardware complexity and signaling overhead.
Innovation Solution
A method and apparatus for configuring CSI-IM resources in a wireless communication system, where a frequency domain resource occupied by the CSI-IM resource includes at least two RB sets, each with multiple consecutive RBs, and any two RB sets are nonconsecutive, allowing for reduced hardware complexity and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional CSI-IM resource configuration is used, then hardware complexity is reduced, but configuration flexibility in frequency domain is limited
Solution Approach 1:
The frequency domain resource is segmented into multiple RB sets, where each set contains consecutive RBs. This segmentation allows flexible configuration of CSI-IM resources while maintaining hardware simplicity by processing each segment independently.
Solution Approach 2:
The patent introduces dynamic configuration capability where the network can flexibly allocate different RB sets to different UEs based on channel conditions and interference characteristics, enabling adaptive resource management without increasing hardware complexity.
2Loss of information
If conventional CSI-IM resource configuration is used, then hardware complexity is maintained at acceptable levels, but signaling overhead is high
Solution Approach 1:
Multiple RB sets are merged into a single CSI-IM resource configuration structure, allowing the network to indicate multiple non-consecutive RB sets through a unified configuration mechanism, thereby reducing signaling overhead while maintaining measurement capability.
Solution Approach 2:
The CSI-IM resource configuration is designed to be universal, supporting both single RB set and multiple RB sets configurations through the same signaling mechanism, which reduces the need for separate signaling procedures and decreases overall overhead.
3Productivity
If CSI-IM resource is configured with single RB set, then measurement simplicity is maintained, but subband full duplex performance is compromised
Solution Approach 1:
The frequency domain is segmented into multiple RB sets that can be independently configured for CSI-IM measurements. This segmentation enables the system to measure interference in different subbands simultaneously, improving transmission efficiency in SBFD scenarios while keeping each individual measurement simple.
Solution Approach 2:
The patent transitions from single-RB-set measurement to multi-RB-set measurement in the frequency domain, adding a dimensional aspect that enables simultaneous measurement across multiple subbands, thereby improving productivity without proportionally increasing measurement complexity.
Data Source
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AI summary
The present disclosure provides a method and an apparatus for wireless communication. The method includes: receiving a first message, where the first message is used to indicate a first CSI-IM resource set, and the first CSI-IM resource set includes a first CSI-IM resource; performing an interference measurement in the first CSI-IM resource; and sending a first CSI, where the interference measurement performed in the first CSI-IM resource is used to calculate the first CSI; and a frequency domain resource occupied by the first CSI-IM resource includes at least two RB sets, and any two RB sets in the at least two RB sets are nonconsecutive in a frequency domain. This application can improve configuration flexibility, and maintain great compatibility with existing systems.