Random Access Method Using Hash Identifier for 5G Signaling Reduction
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Solution Overview
Problem
Current random access methods in 4G systems face challenges with long time delays and high signaling overhead, particularly in the 5G era where service delay requirements are stringent and the frequency of contention-based random access requests increases due to diverse terminal types and user density.
Innovation Solution
A random access method that involves sending a random access request carrying a first identifier, calculated using algorithms like one-way function, hash function, or elliptic function, which reduces the interaction process between terminals and network devices, saving signaling overhead and shortening time delays by utilizing irreversible and unique identifier calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional contention-based random access is used, then terminal identities can be protected, but time delay increases and signaling overhead increases
Solution Approach 1:
The patent extracts the terminal identity information from the random access request signaling by pre-calculating and sending only the first identifier (hash value) instead of the complete identity. This extraction reduces the signaling overhead and accelerates the random access process while maintaining security through the one-way function property.
Solution Approach 2:
The terminal performs preliminary calculation of the first identifier using a one-way function before sending the random access request. This preliminary action allows the network device to quickly verify identity without requiring multiple interaction steps, thereby reducing time delay and signaling overhead.
2Ease of operation
If traditional random access procedures are used, then identity verification is thorough, but interaction process becomes complex
Solution Approach 1:
The complex identity verification process is simplified by extracting only the essential verification element (first identifier) from the terminal identity. The one-way function transforms complex identity information into a compact form that enables quick verification without requiring complex interaction procedures.
Solution Approach 2:
The terminal autonomously calculates and sends the first identifier without requiring complex network-side verification procedures. The one-way function enables the network device to independently verify identity through simple calculation, reducing interaction complexity.
Data Source
AI summary
A random access method, a terminal and a network device are provided. The random access method includes: sending a random access request carrying a first identifier, or sending a random access request and a first identifier.