Random Access Resource Pool Segmentation for 5G Network Slices
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Solution Overview
Problem
In 5G networks, the random access process for user equipment (UE) can lead to network congestion due to shared common random access channel resources, causing collisions and reducing the success rate of access for UEs using different network slices.
Innovation Solution
Configuring separate specified random access resource pools for each network slice or network slice group, allowing UEs to initiate random access based on slice-specific resources, thereby reducing interference and improving access success rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a common random access resource pool is used for all network slices, then resource utilization is simplified, but collision probability increases and access success rate decreases
Solution Approach 1:
The patent divides the common random access resource pool into multiple slice-specific random access resource pools, where each network slice is allocated a dedicated resource pool for random access. This segmentation isolates different network slices from each other, preventing collisions between UEs of different slices while maintaining simplified resource management through automated configuration based on slice identifiers.
2Reliability
If separate random access resource pools are configured for each network slice, then collision probability decreases, but resource configuration complexity increases
Solution Approach 1:
The patent implements preliminary configuration of random access resources for different network slices before the actual random access process. The network side pre-configures and indicates to UEs which random access resource pool corresponds to which network slice, so that UEs can autonomously select the correct resource pool without real-time configuration complexity, thereby reducing collision probability while managing configuration through advance preparation.
3Productivity
If multiple UEs use the same random access resource simultaneously, then resource efficiency is improved, but collision probability increases
Solution Approach 1:
The patent applies local quality by assigning different random access resource pools to different network slices, allowing each slice to have its own dedicated access resources. This ensures that UEs within the same slice can efficiently utilize shared resources while UEs from different slices operate independently without collision, achieving both resource efficiency and collision avoidance through localized resource allocation.
Data Source
AI summary
A random access method is applied to a user equipment (UE), and includes: receiving resource configuration information, wherein the resource configuration information is configured to configure resources in a specified random access resource pool corresponding to at least one network slice; determining a first random access resource based on slice information of a target network slice and the resource configuration information, wherein the target network slice is a network slice for the UE to initiate a random access; and initiating the random access based on the first random access resource.