Dynamic Random Access Channel Resource Allocation in CBRA
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Solution Overview
Problem
Existing communication technologies face challenges in efficiently determining and utilizing random access channel occasion (RO) resources, particularly in contention-based random access (CBRA) configurations, which can lead to resource underutilization and increased contention among network devices.
Innovation Solution
The method involves a terminal receiving configuration information from a network device indicating CBRA configurations and determining a second available RO set. The terminal then identifies a target available RO set that is not configured in the initial CBRA configuration, allowing for more efficient resource allocation and utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If CBRA configuration is used with fixed RO resource allocation, then network device can perform early feature identification, but resource utilization is inefficient and contention increases
Solution Approach 1:
The patent implements dynamic RO resource selection by allowing terminals to randomly select from multiple candidate RO sets (first available RO set, second available RO set, third available RO set) based on configuration indicators. This dynamic selection mechanism transforms the static RO allocation into a flexible system that adapts to varying network conditions, thereby improving resource utilization efficiency while maintaining reliable feature identification through the configured CBRA parameters.
Solution Approach 2:
The patent changes the parameter of RO resource allocation from fixed to variable by introducing multiple candidate RO sets with different configurations. The network device configures indicators that specify which RO sets are available, and terminals randomly select among them. This parameter change enables the system to adjust resource distribution dynamically, resolving the contradiction between reliable feature identification and efficient resource utilization.
2Device complexity
If traditional RO resource allocation is used, then configuration is simple, but contention among terminals increases and access efficiency decreases
Solution Approach 1:
The patent segments the RO resources into multiple distinct sets (first available RO set, second available RO set, third available RO set), each with specific configuration parameters. By dividing the overall RO resources into separable segments that can be independently configured and selected, the system reduces contention among terminals while maintaining manageable configuration complexity through structured parameter organization.
Solution Approach 2:
The patent creates a universal RO allocation framework that can serve multiple functions: early feature identification through CBRA configuration, efficient resource utilization through dynamic selection, and reduced contention through random access to multiple candidate sets. The multi-functional design allows the same mechanism to address both configuration simplicity and access efficiency requirements.
Data Source
AI summary
A method for determining a resource is performed by a communication system including a terminal and a network device. The method includes: sending, by the network device, first configuration information to the terminal, wherein the first configuration information indicates at least one contention-based random access (CBRA) configuration; and determining, by the terminal, a second available random access channel occasion (RO) set, and determining, by the terminal, a target available RO set according to the second available RO set, wherein the target available RO set is not configured in the CBRA configuration.