Multi-SIM Cell Reselection Result Reuse for Power Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Multi-SIM terminals experience increased power consumption due to independent cell reselection processes for each SIM card, especially when moving to the edge of a cell.
Innovation Solution
A method for cell reselection in a multi-SIM terminal where a cell reselection process is carried out on a target SIM card, and the resulting cell reselection information is reused for other SIM cards, eliminating the need for separate cell reselection processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If independent cell reselection processes are performed for each SIM card, then each SIM card can independently select the best cell, but power consumption increases
Solution Approach 1:
The patent merges the cell reselection processes of multiple SIM cards by allowing one SIM card to perform the complete cell reselection process while other SIM cards reuse its results. This combining approach eliminates redundant measurements and signal monitoring for multiple SIM cards, thereby reducing power consumption while maintaining reliable cell selection for all SIM cards.
Solution Approach 2:
The patent applies universality by making the cell reselection result of one SIM card universally applicable to other SIM cards. The cell reselection information obtained by one SIM card serves multiple purposes - it is used by that SIM card for its own cell selection and also reused by other SIM cards, thus one process serves multiple functions and reduces overall system power consumption.
2Adaptability or versatility
If separate cell reselection processes are performed for each SIM card, then each SIM card has independent cell selection capability, but the complexity of the terminal increases
Solution Approach 1:
The patent merges the cell reselection operations across multiple SIM cards, consolidating what would otherwise be separate independent processes into a shared operation. By having one SIM card perform the reselection and others reuse the results, the system maintains adaptability for each SIM while reducing the overall operational complexity of the terminal.
Data Source
AI summary
A cell reselection method including: carrying out a cell reselection process on a target SIM card among at least two SIM cards so as to obtain a cell reselection result for the target SIM card; and reusing the cell reselection result of the target SIM card for the other SIM card(s) among the at least two SIM cards.