Terminal Paging Capability Exchange for Reliable Low-Power Paging
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Solution Overview
Problem
The current paging mechanism in communication systems lacks a consistent understanding between terminal devices and network devices regarding the paging capabilities, leading to inefficiencies and reduced reliability due to unnecessary power consumption and false alarms.
Innovation Solution
A method for terminal devices to communicate their paging capabilities to network devices, ensuring both parties have a consistent understanding through the exchange of capability information, enabling the use of advanced paging mechanisms like PEI to reduce power consumption and improve reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices monitor each paging occasion to receive paging messages, then paging reliability is improved, but energy consumption increases significantly
Solution Approach 1:
The patent segments terminal devices into different subgroups and introduces a paging early indication (PEI) mechanism that provides subgroup-specific paging information before the actual paging occasion. This allows terminal devices to determine whether they need to monitor the full paging message based on their subgroup indication, thereby reducing energy consumption while maintaining paging reliability for devices that require it.
2Device complexity
If terminal devices and network devices have inconsistent understanding of paging capabilities, then device complexity is reduced, but paging reliability deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where terminal devices report their paging capabilities to the network device, and the network device responds with capability confirmation or correction information. This ensures both parties have consistent understanding of the terminal device's paging capabilities (such as PEI support, subgrouping capability), preventing mismatches that would compromise paging reliability while avoiding unnecessary complexity through standardized capability exchange procedures.
Data Source
AI summary
This application provides a communication method and a related apparatus. The method is applied to a terminal device. The method includes: sending paging capability information to an access network device, where the paging capability information indicates one or more paging capabilities supported by a terminal device; and receiving first information from the access network device, where the first information indicates that the access network device successfully maintains one or more paging capabilities. Based on the solutions in embodiments of this application, the terminal device and a network device can have a consistent understanding of a paging capability of the terminal device, to improve paging reliability.