Network Control Node Paging Property Storage for Idle Mode Reliability
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Solution Overview
Problem
Wireless communication networks face challenges in transmitting paging information to user equipment in idle mode, particularly for low complexity MTC devices operating in high signal attenuation areas, where conventional methods fail to account for enhanced coverage modes that require repeated messaging for successful communication.
Innovation Solution
The network control node receives and stores user equipment capability information indicating support for coverage enhanced mode and current operational mode, transmitting this paging property information to base stations to instruct repeated messaging for effective paging of user equipment in idle mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional paging methods are used for user equipment in idle mode, then network complexity is reduced, but paging reliability deteriorates in high signal attenuation areas
Solution Approach 1:
The network control node receives and stores user equipment capability information indicating support for coverage enhanced mode and current operational mode before paging is needed. This preliminary storage of paging property information allows the system to quickly determine whether repeated messaging should be used when paging idle mode user equipment, thereby improving paging reliability in high attenuation areas without adding complex real-time decision-making logic during the paging process
Solution Approach 2:
The system implements a feedback mechanism where user equipment provides capability information about coverage enhanced mode support to the network control node. This feedback enables the network to adapt its paging strategy by storing the received capability information and using it to determine whether to apply repeated messaging, thus improving paging reliability while maintaining manageable network complexity through automated decision-making
2Reliability
If repeated messaging is used for coverage enhanced mode, then paging reliability in high attenuation areas is improved, but messaging efficiency deteriorates
Solution Approach 1:
The network control node stores user equipment capability information in advance, including indication of coverage enhanced mode support and current operational mode. This preliminary storage allows the system to determine whether repeated messaging is needed before actually sending paging messages, ensuring that repetition is only applied when necessary for reliability, thus maintaining messaging efficiency for normal cases while improving reliability only when required
Solution Approach 2:
The system changes the messaging parameter (repetition) dynamically based on stored capability information. When the stored information indicates the user equipment is in coverage enhanced mode, the system applies repeated messaging to improve reliability. When the stored information indicates normal operation mode, the system uses conventional single messaging to maintain efficiency. This conditional parameter change resolves the contradiction between reliability and efficiency
Data Source
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AI summary
A method, computer program, network control node, user equipment and base station are disclosed which allow a wireless communication network to support different types of user equipment which have particular signalling requirements. In particular, low complexity devices that require signals having low transport block sizes and those that require a coverage enhanced mode where messages are repeated are supported. Information regarding their particular capabilities are transmitted to and stored in the network control node which then transmits this information as paging information with any paging request.