Flexible Cellular Sidelink Resource Pool Configuration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, particularly in vehicular applications, face challenges in configuring cellular sidelink resources efficiently, leading to limitations in flexible resource allocation and coverage, especially in scenarios requiring non-contiguous frequency resources and diverse communication scenarios.
Innovation Solution
A cellular base station selects and configures a resource pool for sidelink communication, allowing for flexible allocation of non-contiguous frequency resources and super resource units, which can include multiple frequency sub-channels and time slots, and also configures the sidelink control channel to use non-contiguous resources, providing this configuration information to wireless devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional contiguous frequency resource allocation is used for cellular sidelink, then resource configuration is simple, but spectrum usage efficiency and frequency diversity are limited
Solution Approach 1:
The patent segments frequency resources into discrete units (resource blocks) that can be independently allocated. The resource pool is divided into multiple resource blocks, allowing non-contiguous allocation patterns. This segmentation enables flexible frequency resource selection while maintaining manageable configuration through standardized blocking units.
Solution Approach 2:
The patent implements dynamic resource pool configuration where the base station can adaptively select and reconfigure resource pools based on channel conditions and traffic requirements. The system transitions from static contiguous allocation to dynamic non-contiguous allocation, allowing real-time optimization of spectrum usage efficiency.
2Reliability
If non-contiguous frequency resources are allocated, then spectrum usage efficiency and frequency diversity improve, but resource selection and configuration become more complex
Solution Approach 1:
The patent merges multiple resource blocks into a unified resource pool structure, allowing non-contiguous resources to be managed as a single logical entity. This merging simplifies configuration by providing a unified interface for resource selection while enabling the underlying non-contiguous allocation to improve reliability through frequency diversity.
Solution Approach 2:
The patent changes the allocation parameter from contiguous to non-contiguous resource selection. By allowing the base station to select resource blocks based on channel quality metrics rather than strict contiguity, the system optimizes reliability in poor coverage scenarios while managing complexity through parameter-based control.
3Adaptability or versatility
If super resource units aggregating multiple frequency sub-channels and time slots are used, then resource allocation flexibility improves, but configuration overhead increases
Solution Approach 1:
The patent designs the super resource unit structure to serve multiple functions: it can aggregate different numbers of frequency sub-channels, support various time slot configurations, and adapt to different traffic patterns. This multi-functionality reduces the need for multiple separate configuration mechanisms, thereby limiting the increase in configuration overhead.
Solution Approach 2:
The patent implements preliminary configuration of resource pools and super resource units before actual communication begins. By pre-configuring the aggregation structures and their parameters, the system reduces runtime configuration overhead and enables flexible resource allocation without excessive information exchange during active communication.
Data Source
AI summary
Embodiments are presented herein of apparatuses, systems, and methods for configuring cellular sidelink resources in a flexible manner. A cellular base station may select a cellular sidelink resource pool. The cellular sidelink resource pool may include non-contiguous frequency resources. The cellular base station may provide cellular sidelink resource pool configuration information to a wireless device. The cellular sidelink resource pool configuration information may configure the cellular sidelink resource pool that includes non-contiguous frequency resources.