Configured Scheduling Resource Confirmation in 5G Wireless Systems
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Solution Overview
Problem
Current 5G communication systems lack a method for a user equipment to inform a base station about the activation or deactivation of allocated radio resources, which is essential for efficient resource management.
Innovation Solution
The implementation of a configured scheduling scheme that allows user equipment to send confirmation messages to the base station regarding the activation or deactivation of allocated radio resources, using type 1 and type 2 configured grants with specific activation and deactivation procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a configured scheduling scheme is implemented to allocate radio resources, then resource allocation efficiency is improved, but the system lacks a mechanism to confirm activation or deactivation status of allocated resources
Solution Approach 1:
The patent implements a feedback mechanism by introducing a Confirmation MAC CE (Medium Access Control Control Element) that carries activation/deactivation status information from the user equipment (UE) to the base station. This feedback loop allows the base station to verify whether the configured scheduling grant has been properly activated or deactivated by the UE, resolving the information loss problem while maintaining efficient resource allocation.
2Adaptability or versatility
If type 2 configured grants are used for flexible resource allocation, then adaptability is improved, but complexity increases due to multiple activation and deactivation procedures
Solution Approach 1:
The patent applies universality by designing a single Confirmation MAC CE structure that serves multiple purposes: confirming both activation and deactivation of type 2 configured grants, and supporting multiple configured grant indices within one message. This multi-functional approach reduces the overall system complexity despite the flexibility provided by type 2 configured grants.
Solution Approach 2:
The patent segments the confirmation message into structured fields including a first bit for activation status, a second bit for deactivation status, and configurable grant index fields. This segmentation allows the complex activation/deactivation procedures to be broken down into manageable, standardized components, making the system more manageable despite the flexibility it provides.
3Reliability
If confirmed activation status is implemented, then reliability is improved, but message overhead increases due to additional confirmation signals
Solution Approach 1:
The patent extracts only the essential confirmation information needed for reliability into the MAC CE layer, separating this function from the more detailed RRC configuration messages. By taking out only the critical activation/deactivation status bits and grant index information, the system achieves reliable confirmation with minimal overhead, avoiding the need to repeat entire configuration details.
Data Source
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AI summary
The present disclosure relates to a communication technique for converging a 5G communication system for supporting higher data transmission rates beyond a 4G system, with an IoT technology, and a system for same. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related-services, or the like) based on a 5G communication technology and an IoT-related technology. According to the present disclosure, a base station can easily allocate wireless resources through a set scheduling method, and inform a terminal of the allocated wireless resources.