Paging Capability Signaling for Multi-SIM Service Establishment
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Solution Overview
Problem
In scenarios where a base station fails to send a paging cause to a terminal device with multiple communication cards, the terminal device is unable to determine the paging capability of the base station, leading to failure in establishing services.
Innovation Solution
The terminal device receives and analyzes a paging capability indication message within the paging signaling to determine the base station's capability, even if the paging cause is not sent, using methods such as introducing a new paging message (Paging-v17xy-IEs) or utilizing system information to infer the base station's capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the base station does not send the paging cause to the terminal device, then the signaling transmission is simplified, but the terminal device cannot determine the paging capability of the base station
Solution Approach 1:
The patent introduces a paging capability indication message as an intermediary element within the paging signaling. This message serves as a mediator that conveys the base station's paging capability information to the terminal device, resolving the information loss problem while maintaining signaling simplicity. The intermediary message bridge the gap between base station capability and terminal device awareness without requiring complex signaling protocols.
2Device complexity
If the terminal device cannot determine the base station's paging capability, then the communication protocol remains simple, but the service establishment fails
Solution Approach 1:
The patent implements preliminary action by having the base station indicate its paging capability in advance through the paging capability indication message before the actual paging procedure. This advance information provision allows the terminal device to prepare appropriately and determine whether to respond to the paging, thereby ensuring service establishment reliability without adding complex real-time negotiation protocols.
3Loss of information
If the base station sends the paging cause to the terminal device, then the terminal device can determine paging capability, but the signaling overhead increases
Solution Approach 1:
The patent extracts the essential paging capability information from the potentially complex paging signaling and presents it through a dedicated paging capability indication message. This extraction approach ensures that only the necessary capability information is transmitted, avoiding unnecessary signaling overhead while maintaining complete information delivery for service establishment.
Data Source
AI summary
The present disclosure provides a method and apparatus for distinguishing paging capability of a base station, and a communication device, belonging to the technical field of wireless communication. The method includes: a terminal device receives paging signaling of a base station, and acquires a paging capability indication message in the paging signaling, where the paging capability indication message is used to carry a paging cause.