Wireless Terminal Resource Pool Selection Using Usage Indices
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Solution Overview
Problem
In wireless communication systems, especially in public safety networks, there is a need for efficient resource pool selection in Device-to-Device (D2D) operations to ensure optimal communication, as current methods lack the ability to distinguish and select suitable resource pools based on specific use cases, leading to decreased resource pool selection efficiency and overall network performance.
Innovation Solution
A method where a network provides indices to user equipment (UE) to identify the use of each resource pool, allowing the UE to select the most suitable resource pool based on criteria such as public safety or non-public safety usage, range classification, and coverage classification, thereby enhancing resource pool selection efficiency and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the network broadcasts resource pool information without usage indices, then the terminal can receive resource pool configuration, but the terminal cannot distinguish and select suitable resource pools based on specific use cases, leading to decreased resource pool selection efficiency
Solution Approach 1:
The patent segments the resource pool information by introducing usage indices that categorize different resource pools according to their specific uses (e.g., public safety, non-public safety, range classifications, coverage classifications). This segmentation allows terminals to distinguish and select appropriate resource pools based on their specific operational requirements, thereby resolving the contradiction between receiving resource pool configuration and being able to select suitable ones.
2Adaptability or versatility
If the network provides detailed usage indices for each resource pool, then the terminal can select the most suitable resource pool, but the information complexity and signaling overhead increase
Solution Approach 1:
The patent extracts essential usage characteristics into standardized indices (such as public safety indicators, range classifications, coverage classifications) that are broadcast by the network. This extraction approach provides terminals with sufficient information to make informed resource pool selections without overwhelming them with unnecessary details, thus balancing adaptability with information processing complexity.
3Measurement precision
If multiple indices are provided for each resource pool to cover different use cases, then the terminal can make more accurate selections, but the signaling overhead and processing time increase
Solution Approach 1:
The patent applies local quality by providing different sets of indices for different resource pools based on their specific characteristics (e.g., public safety resource pools have different indices compared to non-public safety pools). This targeted approach allows terminals to quickly identify and select appropriate resource pools without processing all possible indices for every pool, thereby maintaining selection accuracy while reducing processing time.
Data Source
AI summary
The present invention provides a device-to-device (D2D) operation method performed by a terminal in a wireless communication system, the method comprising the steps of: receiving, from a network, a configuration indicating at least one or more resource pool; receiving at least one or more index on each of the at least one or more resource pool; selecting, on the basis of the at least one or more index, one resource among the at least one or more resource pool; and performing direct communication through the selected resource pool, wherein the index is information indicating the usage of the at least one or more resource pool.