Random Access Process Selection for User Plane Data Transmission
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Solution Overview
Problem
The reliability of sending or receiving user plane data by a terminal in an idle or inactive state is relatively low due to the limitations of existing random access processes.
Innovation Solution
A random access method where a terminal selects a random access process type and corresponding resource from configured options, allowing user plane data to be sent or received, thereby improving access reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal in idle or inactive state uses traditional 4-step or 2-step random access process, then the access process can be completed, but user plane data cannot be sent or received during the access process, resulting in low reliability of data transmission
Solution Approach 1:
The patent segments the random access process into multiple independent types (first type without data transmission, second type with data transmission capability). The terminal can select appropriate segments based on whether data needs to be transmitted, allowing data transmission to occur during access without compromising access reliability.
Solution Approach 2:
The patent introduces dynamic selection of random access process types, where the terminal can adaptively choose between different access modes (first type or second type) based on data transmission requirements. This dynamic approach enables the system to switch between access modes to optimize both reliability and data transmission capability.
2Reliability
If the terminal selects from multiple configured random access process types, then the terminal can choose a process that allows user plane data transmission, but the system complexity increases due to multiple process types and resource configurations
Solution Approach 1:
The patent creates a universal random access framework where multiple process types share common configuration structures and resource pools. The network can configure both first-type and second-type access processes using similar parameter sets, allowing the system to handle different access scenarios with a unified configuration approach, thereby reducing overall system complexity.
Solution Approach 2:
The patent differentiates between first-type and second-type random access processes through specific parameter configurations (e.g., whether data transmission is enabled, associated resource allocations). By controlling a key parameter (data transmission capability) rather than creating entirely separate complex systems, the patent simplifies the management of multiple access types while maintaining the ability to support both modes.
Data Source
AI summary
The present disclosure provides a random access method, a configuration method, a terminal, and a network side device. The random access method includes: sending random access request information corresponding to a first random access process type on a first random access request resource, where the first random access process type corresponds to the first random access request resource; the first random access process type is a random access process type selected by a terminal from N configured random access process types, the N random access process types include at least a random access process in which user plane data can be sent or received, and N is an integer greater than 1; and the first random access request resource is a random access request resource selected by the terminal from random access request resources corresponding to the N configured random access process types.