5G Terminal Alternative Resource Handling for Configured Grant Collisions
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Solution Overview
Problem
In 5G communication systems, when configured grants overlap, terminals face challenges in handling resource collisions, leading to potential degradation in transmission performance due to the inability to timely process data using unused configured grants.
Innovation Solution
A method and apparatus that determine resource collisions, identify alternative resources for lower priority grants, and flush buffers if no MAC PDU is generated, allowing data to be transmitted via the identified alternative resource, thereby mitigating performance degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple configured grants are allocated to a terminal, then data transmission capability is improved, but resource collision occurs when grants overlap in time-frequency resources
Solution Approach 1:
The patent changes the parameter of resource allocation by introducing alternative resources that can be dynamically selected when collision occurs. The base station configures multiple alternative resources with different time-frequency parameters, and the terminal selects appropriate alternatives based on collision detection, thereby maintaining transmission reliability while preserving multiple grant configurations.
Solution Approach 2:
The patent introduces dynamic resource selection mechanism where the terminal dynamically chooses between original and alternative resources based on real-time collision status. This dynamic adaptation allows the system to maintain high productivity when grants don't collide while ensuring reliability when collisions occur, resolving the contradiction between having multiple configured grants and avoiding resource conflicts.
2Speed
If a terminal uses a configured grant for data transmission, then transmission speed is improved, but resource waste occurs when the grant cannot be used due to collision
Solution Approach 1:
The patent applies preliminary action by pre-configuring alternative resources before collision occurs. The base station provides multiple alternative resource options in advance, and the terminal is prepared to switch to these alternatives immediately when collision is detected, minimizing resource waste and maintaining transmission speed without requiring complex real-time resource allocation negotiations.
3Reliability
If alternative resources are configured for collision handling, then transmission reliability is improved, but system complexity increases due to additional resource management
Solution Approach 1:
The patent implements self-service by enabling the terminal to autonomously detect resource collision and select appropriate alternative resources without requiring continuous base station intervention. The terminal independently manages the selection process based on pre-configured alternatives, reducing signaling overhead and system complexity while maintaining high transmission reliability through automated collision handling.
Data Source
AI summary
A communication technique and a system for fusing a 5th generation (5G) communication system with Internet of things (IoT) technology for supporting a higher data rate after a 4th generation (4G) system is provided. The disclosure can be applied to intelligent services (e.g., a smart home, a smart building, a smart city, a smart car or a connected car, healthcare, digital education, retail, security and safety related services, and the like), based on 5G communication technology and IoT related technology. The disclosure provides a method and an apparatus for indicating an alternative resource in the event of a collision of configured grants.