Paging Indexes for Non-Homogeneous Network Slice Re-Selection
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently paging user devices in non-homogenous network slices within a tracking area or registration area, leading to suboptimal paging and increased processing load due to the need for RRC connection setup and service request initiation.
Innovation Solution
A method and apparatus for enhanced paging behavior that utilizes an index in the paging message to indicate a network slice or cell, allowing the user device to re-select to a frequency or frequency priority based on a pre-configured mapping, enabling connection setup and service request to the appropriate slice without entering RRC connected mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the user device uses existing paging methods in non-homogenous network slices, then the device can receive paging messages, but the processing load increases and service access delays occur due to RRC connection setup requirements
Solution Approach 1:
The network node pre-configures the user device with a mapping between indexes and frequency priorities before paging occurs. When a paging message with an index is received, the device can immediately perform cell re-selection based on the pre-configured mapping without requiring RRC connection setup, thus reducing service access delay while maintaining paging efficiency
Solution Approach 2:
The invention extracts the frequency priority information from the RRC connection setup process and includes it directly in the paging message as an index. This allows the device to obtain frequency priority information during paging without initiating a separate RRC connection, thereby reducing processing load and service access delay
2Ease of operation
If the network node sends paging messages without frequency priority information, then the message structure remains simple, but the user device cannot efficiently re-select to the appropriate network slice
Solution Approach 1:
The invention introduces an index as an intermediary element in the paging message that indirectly conveys frequency priority information. Instead of directly including complex frequency priority data, the index serves as a reference that the device can map to frequency priorities using pre-configured mappings, thus enabling efficient slice re-selection while keeping the message structure relatively simple
Solution Approach 2:
The invention changes the parameter representation from direct frequency priority values to compact index values in the paging message. These index parameters are mapped to frequency priorities using pre-configured mappings stored in the device, enabling efficient slice re-selection without significantly increasing message complexity
Data Source
AI summary
Techniques for paging with non-homogenous network slice support in area network are provided. For example, a method of paging of a user device is disclosed. The method comprises: receiving, by the user device, a paging message from a network node, the paging message comprising an index which indicates the paging message to correspond to a network slice or a cell; and receiving, by the user device, data from the network slice or the cell.