Vectorized Channel Quality Indicator for Wireless Resource Allocation
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Solution Overview
Problem
Existing wireless communication systems face challenges in dynamically allocating resources to mobile terminals due to limitations in channel quality measurement and interference management, leading to suboptimal performance and potential disruptions during handoffs.
Innovation Solution
The implementation of a method and apparatus for receiving vectorized channel quality indicator (VCQI) reports from terminals, which allows for dynamic resource allocation based on measured channel quality and interference information, enabling more efficient scheduling and power management in wireless communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional channel quality measurement methods are used, then the measurement process is simple, but the resource allocation is suboptimal and cannot support dynamic resource allocation
Solution Approach 1:
The channel quality indicator is segmented into multiple dimensions including frequency-selective CQI for different resource sets and interference measurements for different sectors. This segmentation enables detailed resource allocation decisions while maintaining manageable measurement complexity through structured reporting formats.
Solution Approach 2:
The patent introduces vectorized CQI reporting that adds frequency and spatial dimensions to traditional channel quality measurements. By measuring and reporting CQI across multiple resource sets and sectors simultaneously, the system achieves comprehensive channel quality assessment without proportionally increasing measurement complexity through standardized measurement procedures.
2Loss of information
If system-wide channel quality information is collected from all terminals, then resource allocation becomes optimal, but the amount of signaling overhead increases
Solution Approach 1:
The VCQI report structure is designed to serve multiple functions simultaneously: it provides channel quality information for resource allocation, interference measurements for frequency review decisions, and sector-specific data for handoff management. This multi-functionality reduces the need for separate signaling messages for different purposes.
Solution Approach 2:
The system implements selective reporting where terminals report VCQI information only when it changes or when triggered by specific events. The base station requests VCQI reports only for specific resource sets or sectors when needed for resource allocation decisions, reducing overall signaling overhead while maintaining information completeness when required.
3Reliability
If frequency review is performed using traditional methods, then the process is simple, but handoffs are disrupted and communication quality deteriorates
Solution Approach 1:
The system performs frequency reviews using VCQI information before handoffs are initiated. By having terminals continuously measure and report channel quality and interference across different sectors and resource sets, the base station can identify optimal target sectors in advance and prepare handoff parameters, ensuring seamless handoff execution without communication disruptions.
Data Source
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AI summary
Enabling resource partitioning in a wireless communication is provided. A terminal can measure channel quality and other information in a wireless communication environment and prepare a VCQI report. The report can be transmitted to a serving base station and/or non-serving base stations. The report information can be utilized by the base stations to allocate resources and/or to facilitate handoff within the wireless communication environment.