RAN Slice Control Information Transmission for Service Isolation
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Solution Overview
Problem
In 5G mobile communication, RAN slicing faces challenges in dynamically controlling resources to support multiple services without separate systems, requiring each slice to operate independently and be isolated from others, especially in case of operation failures.
Innovation Solution
The system transmits individual control information for each RAN slice, including random access parameters, bandwidth information, and TDD settings, using unique IDs to distinguish different services or slices, allowing for independent operation and isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slicing is implemented to support multiple services with one system, then resource efficiency and service diversity are improved, but system complexity and isolation requirements increase
Solution Approach 1:
The patent divides the RAN into independent slices, each with its own control information and resources. Each slice is segmented from others through separate system information transmission, enabling independent operation and failure isolation while supporting multiple services within a single unified system.
Solution Approach 2:
The patent applies local quality by providing slice-specific control information (random access parameters, bandwidth, TDD settings) tailored to each slice's requirements. This allows different slices to have customized characteristics optimized for their specific services while maintaining overall system coordination.
2Reliability
If separate systems are used for each service, then service isolation and reliability are improved, but resource efficiency and system scalability deteriorate
Solution Approach 1:
The patent merges multiple service systems into a single unified RAN that operates through network slicing. Different slices share the same physical infrastructure and control information transmission mechanisms while maintaining logical isolation through slice-specific parameters and separate system information messages, achieving both resource efficiency and service isolation.
Solution Approach 2:
The patent segments the unified system into independent slices that can fail independently. Each slice has dedicated control information transmission and resource allocation, ensuring that failures in one slice do not propagate to other slices, thus maintaining reliability while sharing common resources.
3Reliability
If individual control information is transmitted for each RAN slice, then slice isolation and independent operation are improved, but information transmission complexity and overhead increase
Solution Approach 1:
The patent segments control information into separate system information messages for each slice. Each slice receives dedicated control information containing its specific random access parameters, bandwidth configuration, and TDD settings, enabling reliable slice isolation while managing information transmission through structured messaging.
Solution Approach 2:
The patent employs a universal control information transmission framework that can serve multiple slices. The base station uses a standardized approach to transmit slice-specific control information, allowing the same transmission mechanism to support multiple slices without requiring completely separate communication channels for each.
Data Source
AI summary
The present disclosure relates to an apparatus and method for transmitting RAN (Radio Access Network) slice-related information, and discloses a user equipment including: a transceiver configured to receive individual control information provided individually for each RAN slice from a network node, and to perform a random access procedure using resources individually configured for each RAN slice based on the individual control information; and a processor for controlling reception of the individual control information, and the random access procedure. Such a user equipment provides an effect of being able to separately transmit control information including, for example, system information for each slice for RAN slicing.