Initial Access Resource Segmentation for Lite and Ordinary Terminals
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Solution Overview
Problem
In new radio (NR) systems, the lack of distinction between different categories of user terminals leads to performance issues and access failures due to shared initial access resources, affecting ordinary UEs when an excessive number of lite terminals are present.
Innovation Solution
The method involves a network-side device configuring and sending different initial access resources to various categories of terminals, allowing each category to select and use specific resources for initial access, thereby preventing resource overlap and ensuring balanced network load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all user terminals share the same initial access resources, then the system structure is simple and easy to implement, but the access performance deteriorates when excessive lite terminals are present
Solution Approach 1:
The patent segments initial access resources into different types (first type for lite terminals, second type for ordinary terminals) and configures them separately. The network device sends different configuration messages to different terminal categories, assigning dedicated resources to each category. This segmentation resolves the contradiction by maintaining simple resource configuration structure while improving access performance through dedicated resource allocation, preventing resource contention between terminal types.
2Reliability
If different categories of terminals use separate initial access resources, then access performance for each category is improved, but the system complexity increases
Solution Approach 1:
The patent uses a universal configuration message structure that can serve multiple terminal categories. The same basic configuration framework is used for both lite terminals and ordinary terminals, with only the specific resource parameters differing. This multi-functionality approach maintains system simplicity while enabling differentiated resource allocation, as the network device uses a unified procedure to configure and manage resources for different terminal types.
3Quantity of substance
If lite terminals access using shared resources, then resource utilization is high, but ordinary terminals experience access failures and increased delay
Solution Approach 1:
The patent applies local quality by assigning different resource characteristics to different terminal categories. Lite terminals are allocated specific initial access resources (first type) with appropriate parameters, while ordinary terminals receive different resources (second type). This localized resource optimization ensures that each terminal category uses resources suited to its characteristics, maintaining high overall resource utilization while guaranteeing access success for ordinary terminals without being affected by lite terminal access volume.
Data Source
AI summary
This application discloses an initial access method and apparatus, a terminal, and a network-side device. The method includes: receiving a configuration message sent by a network-side device, where the configuration message includes a plurality of initial access resources, and the plurality of initial access resources are configured for different categories of terminals by the network-side device; selecting, from the plurality of initial access resources, an initial access resource corresponding to a category of the terminal; and performing an initial access operation based on the selected initial access resource.