Unified Counter for 5G Random Access Fallback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The complexity of the fallback scheme in 5G communication systems' random access procedures, which improves the success rate but introduces a complex processing scheme, needs to be reduced.
Innovation Solution
A method where a terminal device switches from a 2-steps random access procedure to a 4-steps procedure when a counter reaches a certain number of transmissions, using a single counter to record both types of random access message transmissions, thereby simplifying the fallback scheme.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device uses a fallback scheme to switch from 2-steps to 4-steps random access procedure when transmission fails, then the success rate of random access is improved, but the processing complexity of the fallback scheme increases
Solution Approach 1:
The patent merges the counter for recording 2-steps random access message transmissions with the counter for recording 4-steps random access message transmissions into a single unified counter. This consolidation reduces the processing complexity by eliminating the need to maintain and manage separate counters for different random access procedures, while still enabling the fallback mechanism to function correctly based on transmission failure conditions.
2Measurement precision
If the terminal device maintains separate counters for recording transmissions in 2-steps and 4-steps random access procedures, then the tracking precision of transmission counts is improved, but the device complexity increases
Solution Approach 1:
The patent designs a universal counter that serves multiple functions: it records transmission counts for both 2-steps and 4-steps random access procedures. The counter is configured to increment based on the type of random access procedure being executed, allowing a single counter structure to provide precise tracking for different procedures without requiring separate dedicated counters for each procedure type.
Data Source
AI summary
A method of random access, a terminal device, and a non-transitory computer-storage medium are provided. The method includes the following. In response to a terminal device failing to achieve access when a value of a counter for recording a number of transmissions of a random access message containing a preamble reaches N during a first random access procedure, the terminal device switches from the first random access procedure to a second random access procedure, where the counter is further configured to count a number of transmissions of a random access message containing a preamble during the second random access procedure, and N is a positive integer.