Random Access Resource Pool Segmentation for NR Conflict Resolution
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Solution Overview
Problem
In LTE systems, the random access process faces conflicts due to multiple RACH configurations in NR, leading to undetermined RARs, which existing solutions have not effectively addressed.
Innovation Solution
The method involves acquiring a random access resource pool or type for a PRACH, receiving a random access response message based on this pool or type, and using distinct RA-RNTI calculations and CORESET configurations to differentiate between contention-based and contention-free access modes, thereby avoiding resource conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sets of RACH configurations are introduced to adapt to different services and wireless environments, then the adaptability of the random access system is improved, but resource conflicts increase and conflict resolution becomes more difficult
Solution Approach 1:
The patent segments the random access resource pool into multiple independent configurations, each dedicated to specific access types (contention-free, contention-based, SI request). Each configuration has its own dedicated resources, preventing resource conflicts while maintaining adaptability to different service requirements and wireless environments.
Solution Approach 2:
The patent applies local quality by assigning different resource pool configurations to different random access types based on their specific requirements. Each access type receives tailored resource allocation with appropriate parameters optimized for its characteristics, ensuring both adaptability and conflict-free operation.
2Productivity
If multiple independently configured RACH resource pools are used to meet service requirements, then the productivity of random access is improved, but resource conflicts and undetermined RARs occur
Solution Approach 1:
The patent establishes preliminary associations between different random access types and their corresponding dedicated resource pools before access occurs. The network configures and signals multiple RACH configurations with clear mapping relationships to access types, enabling UEs to select appropriate resources in advance and ensuring reliable RAR determination without conflicts.
Data Source
AI summary
Provided are a random access method and device, a storage medium, and an electronic device. The method comprises: acquiring a random access resource pool or a random access type of a PRACH; receiving a random access response message according to the random access resource pool or the random access type. By means of the present invention, the technical problem in the related art that a resource conflict is caused due to the fact that a received RAR cannot be determined is solved.