Semi-Persistent Scheduling for V2X Resource Allocation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently allocating resources, particularly for vehicles with fast mobility in V2X communication, leading to increased signaling overhead and instability in resource allocation.
Innovation Solution
A method using semi-persistent scheduling for resource allocation in wireless communication systems, specifically designed for vehicle-type UE in V2X communication, to stabilize resource allocation and minimize signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic resource allocation is used for V2X communication, then resource efficiency is improved, but signaling overhead increases and allocation stability deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-configuring resource pools and pre-establishing scheduling parameters before actual V2X communication begins. The eNB pre-allocates resource pools for different service types (e.g., distance alerting, vehicle positioning) and pre-configures UE with scheduling parameters including periodicity and offset values, eliminating the need for real-time dynamic allocation signaling and reducing overhead while maintaining efficiency
2Productivity
If dynamic resource allocation is used for fast moving UEs, then resource utilization is improved, but allocation stability deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-configuring resource pools and pre-establishing scheduling parameters before actual V2X communication begins. The eNB pre-allocates resource pools for different service types (e.g., distance alerting, vehicle positioning) and pre-configures UE with scheduling parameters including periodicity and offset values, eliminating the need for real-time dynamic allocation signaling and reducing overhead while maintaining efficiency
Solution Approach 2:
The patent applies dynamics by enabling flexible resource allocation that adapts to changing mobility conditions. The system allows dynamic adjustment of resource pool assignments and scheduling parameters based on UE speed and service type, maintaining both stability through pre-configured frameworks and flexibility through real-time adaptation to mobility changes
3Device complexity
If traditional scheduling methods are used, then implementation simplicity is maintained, but resource allocation efficiency for V2X deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the resource allocation system into distinct segments: resource pools are segmented by service type (distance alerting, vehicle positioning, etc.), and scheduling is segmented into periodic allocations with specific offset values. This segmentation enables efficient V2X resource allocation while maintaining implementation simplicity through structured organization rather than complex unified management
Data Source
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AI summary
Disclosed are a method for allocating resources in a wireless communication system and an apparatus therefor. In particular, a method for allocating radio resources to a UE in a wireless communication system, comprising: a step of receiving, from a first base station, first semi-persistent scheduling (SPS) configuration information including semi-persistent resource allocation information of a first cluster; a step of being allocated a first SPS resource on the basis of the first SPS configuration information by receiving an SPS assignment from the first base station; and a step of, when the UE performs handover to a second cluster belonging to the same cluster group as the first cluster, being allocated a second SPS resource on the basis of the first SPS configuration information by receiving an SPS assignment from a second base station, wherein the cluster is composed of one or more cells, and the cluster group may be composed of one or more clusters in which the same resource pool is set.