Multi-SIM Paging Response via PDCCH Priority Signaling
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Solution Overview
Problem
Multi-SIM terminals experience collisions in paging times, leading to missed or failed reception of paging signals, which affects the establishment of corresponding services.
Innovation Solution
A method and apparatus for a multi-SIM terminal to determine if a PDCCH includes indication information indicating a service priority meeting a preset condition, and perform a paging response accordingly, while a network-side device transmits a PDCCH with indication information based on service priority conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-SIM terminals monitor paging for multiple SIMs simultaneously, then paging coverage is improved, but paging signal reception reliability deteriorates due to time collisions
Solution Approach 1:
The patent changes the parameter of paging signal priority by introducing indication information in the PDCCH that carries service priority levels. The terminal device changes its behavior parameter (whether to respond to paging) based on the received priority indication, responding only to high-priority paging signals during time collisions, thereby resolving the contradiction between covering multiple SIMs and maintaining reception reliability.
2Productivity
If terminal devices respond to all paging signals, then service establishment completeness is improved, but time resource efficiency deteriorates due to handling low-priority paging during collisions
Solution Approach 1:
The patent applies partial action by having the terminal device selectively respond only to high-priority paging signals when time collisions occur, rather than responding to all paging signals. The indication information in the PDCCH enables the terminal to identify which paging signals require response, achieving efficient time resource utilization while maintaining essential service establishment.
3Object-affected harmful factors
If different SIMs use different paging time configurations, then paging collision frequency is reduced, but device complexity increases due to multiple terminal operations and working modes
Solution Approach 1:
The patent introduces an intermediary mechanism - the indication information carried in the PDCCH - that mediates between the network's paging scheduling and the terminal's response behavior. This intermediary allows the network to indicate priority levels, enabling the terminal to handle multiple SIMs with different paging configurations without increasing terminal complexity, as the decision logic is simplified to check the indication information and respond accordingly.
Data Source
AI summary
A paging response method includes that: a target SIM determines, in response to receiving a target physical downlink control channel (PDCCH) for paging the target SIM, whether the target PDCCH includes target indication information, where the target indication information indicates that a target service priority corresponding to a paging service that pages the target SIM meets a preset service priority condition; and the target SIM performs a paging response in response to determining that the target PDCCH includes the target indication information.