LTE-NR Sidelink Resource Allocation for Interference Avoidance
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Solution Overview
Problem
The relationship between NR-dedicated resources, R18 NR and LTE shared resources, and resource pools in communication systems is not specified, leading to inefficiencies and interference.
Innovation Solution
A method and apparatus to specify the relationship between NR-dedicated resources, R18 NR, and LTE shared resources by determining a third resource from a resource pool that includes or consists of both NR and LTE resources, considering the communication protocols and propagation types of terminal apparatuses, to facilitate efficient sidelink information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LTE-dedicated resources are shared with NR communication system, then spectrum resource utilization is improved, but resource allocation complexity and interference increase
Solution Approach 1:
The patent segments the shared resource pool into distinct resource types (first resource for LTE sidelink, second resource for NR sidelink) with different allocation rules. Terminal devices selectively access resources based on their communication system type, simplifying the allocation process while improving spectrum utilization through shared access.
Solution Approach 2:
Different quality attributes are assigned to different resource portions within the shared pool. The first resource is optimized for LTE sidelink characteristics while the second resource is optimized for NR sidelink characteristics, allowing each system to operate with appropriate parameters while sharing the overall spectrum resources.
2Adaptability or versatility
If shared resource pool includes both LTE and NR resources, then resource flexibility is improved, but interference between systems increases
Solution Approach 1:
The shared resource pool is segmented into first resources and second resources that are exclusively allocated to LTE and NR sidelink communications respectively. This segmentation prevents inter-system interference while maintaining the flexibility of a shared pool architecture, as each system accesses only its designated resource type.
Solution Approach 2:
The patent introduces an intermediary classification mechanism that mediates between LTE and NR resource requirements. By defining clear boundaries and access rules for first and second resources, the intermediary layer prevents direct conflict and interference between the two communication systems while allowing both to operate efficiently.
3Productivity
If relationship between resource types and resource pool is not specified, then system simplicity is maintained, but communication efficiency decreases
Solution Approach 1:
The patent defines a segmented resource pool structure where first resources and second resources are clearly distinguished within the shared pool. This segmentation provides the necessary specification for efficient resource access while maintaining overall system simplicity through a unified pool architecture rather than completely separate resource pools.
Solution Approach 2:
The shared resource pool serves multiple functions by accommodating both LTE sidelink and NR sidelink communications. The first resources and second resources are universally managed within a single pool structure, improving communication efficiency through standardized access procedures while supporting multiple communication systems.
Data Source
AI summary
A communication method, apparatus and non-transitory computer-readable storage medium are provided in this application. A first terminal obtains first information, where the first information indicates a fourth resource to be used by the first terminal apparatus in a first communication system. The first terminal excludes the fourth resource and a fifth resource, the fifth resource including a same resource as the fourth resource in time domain and including different subchannels from the fourth resource. The first terminal determines a sixth resource from a resource excluding the fourth resource and the fifth resource and transmits sidelink information on the sixth resource in a second communication system. When excluding resources, the first terminal excludes not only the fourth resource, but also the fifth resource, to avoid a case that a resource selected by the first terminal conflicts with a reserved resource for a terminal in the first communication system.