5G Random Access Resource Selection for High-Frequency Coverage
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Solution Overview
Problem
The increasing demand for wireless data traffic in 5G communication systems, particularly in high-frequency bands, poses challenges in efficient random access due to propagation losses and the need for improved radio interface efficiency and coverage.
Innovation Solution
The implementation of user equipment (UE) and base stations (BS) with transceivers and processors configured to manage multiple random access (RA) resource configurations, enabling the selection and transmission of preferred RA configurations for efficient random access procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple RA resource configurations are provided to support various services and features, then the adaptability and versatility of the random access system is improved, but the device complexity and configuration management burden increase
Solution Approach 1:
The patent segments the random access resources into multiple distinct configurations (first RA resource configuration, second RA resource configuration, etc.), each tailored for specific services or features. This segmentation allows the system to provide specialized RA support for different use cases while maintaining manageable organization through structured configuration sets.
Solution Approach 2:
The patent implements dynamic selection and indication mechanisms where the UE dynamically indicates which RA resource configuration it has selected from multiple options. The system transitions from static single-configuration operation to dynamic multi-configuration operation, allowing flexible adaptation to different services while managing complexity through standardized indication procedures.
2Adaptability or versatility
If multiple RA resource configurations are configured to support various features, then the versatility of the system is improved, but the difficulty of detecting and measuring the selected configuration increases
Solution Approach 1:
The patent employs feedback mechanisms where the UE transmits an indication message to the network, providing feedback about which RA resource configuration was selected from the multiple available configurations. This feedback loop enables the network to accurately identify and measure the selected configuration, resolving the detection difficulty while maintaining system versatility.
Data Source
AI summary
A user equipment (UE) includes a transceiver configured to receive, from a base station (BS), a plurality of random access (RA) resource configurations. The UE also includes a processor operably coupled to the transceiver. The processor is configured to initiate an RA procedure, select an RA resource configuration from the plurality of RA resource configurations for the RA procedure, and cause the transceiver to transmit an indication of the selected RA resource configuration to the BS. The processor is also configured to, after causing the transceiver to transmit the indication of the selected RA resource configuration to the BS, perform the RA procedure based on the selected RA resource configuration.