Radio Network Node Multi-Slice Paging Identity Matching
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Solution Overview
Problem
Current communication networks face challenges in efficiently managing wireless devices connected to multiple network slices, as existing standards do not allow for proper correlation between Radio Resource Control (RRC) states and Mobility Management states across different slices, leading to issues with paging and resource allocation.
Innovation Solution
Introducing additional signaling procedures that enable paging across network slices by obtaining and matching paging identities associated with different slices, allowing the radio network node to locate and communicate with wireless devices across multiple network slices, thereby improving network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless devices are connected to multiple network slices, then network versatility and service capability are improved, but device complexity and management difficulty increase
Solution Approach 1:
The patent segments the network into multiple independent network slices, each with dedicated resources and management. The wireless device maintains separate RRC connections for each network slice, allowing independent management and correlation of device states across slices. This segmentation enables the device to be served by multiple core network nodes simultaneously without management conflicts.
Solution Approach 2:
The patent introduces a paging identity matching mechanism as an intermediary layer between different network slices. When a device is paged in one network slice while connected to another, the system uses paging identity correlation to bridge the slices and route the paging message through the appropriate RRC connection. This intermediary mechanism resolves the complexity of multi-slice management.
2Reliability
If paging identities are correlated across network slices, then communication reliability is improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent performs preliminary action by establishing paging identity correlations between network slices during device attachment and registration phases. The wireless device provides its identity to the radio network node in advance, and the system pre-configures the correlation mappings. This preliminary setup enables reliable paging delivery without requiring complex real-time processing when paging messages are actually delivered.
3Productivity
If additional signaling procedures are implemented for multi-slice paging, then communication efficiency is improved, but network overhead increases
Solution Approach 1:
The patent implements a universal paging identity correlation mechanism that serves multiple functions: it enables paging across network slices, maintains device state correlation, and supports seamless mobility management. By making this mechanism multi-functional, the patent avoids implementing separate specialized procedures for each function, thereby reducing overall signaling overhead while maintaining high communication efficiency.
Data Source
AI summary
Embodiments herein relate to a method performed by a radio network node of a communication network. The communication network comprises a first set of functionalities belonging to a first network slice of a first core network node, and a second set of functionalities belonging to a second network slice of a second core network node or the first core network node. The radio network node obtains paging identities comprising first and second paging identities of a wireless device; receives a paging indication for the wireless device from the second network slice; initiates a matching process for matching the second paging identity in the paging indication to the paging identities for locating context of the wireless device; and pages, upon a match of the matching process, the wireless device, for communication with the second network slice, using the context.