Dual-Card Mobility Management for Power Saving
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Solution Overview
Problem
In dual-card dual-standby mode, the independent mobility management of two subscriber identification cards leads to redundant mobility behavior, which is not energy-efficient for the terminal.
Innovation Solution
The terminal determines if the mobility management of two subscriber identification cards can be processed combinedly, based on an association relationship between the cards, and transmits indication information to the network side to enable combined processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If independent mobility management is performed for two subscriber identification cards in dual-card dual-standby mode, then each card can be managed separately, but redundant mobility behavior occurs and energy consumption increases
Solution Approach 1:
The patent combines the mobility management of two subscriber identification cards into a unified process. When the terminal determines that both cards are in standby state and meet specific conditions, it performs joint cell selection and reselection evaluation for both cards simultaneously, rather than independently managing each card's mobility. This merging eliminates redundant mobility behaviors and reduces energy consumption while maintaining the ability to manage multiple cards.
2Reliability
If independent mobility management is performed for two subscriber identification cards, then each card maintains its own mobility state, but signaling overhead increases due to redundant actions
Solution Approach 1:
The patent merges mobility management signaling for two cards by performing joint cell selection and reselection evaluation. Instead of generating separate mobility management signals for each card independently, the system evaluates both cards together and generates unified mobility management decisions, thereby reducing signaling overhead while maintaining reliable mobility management for both cards.
3Use of energy by moving object
If combined mobility management is implemented for two subscriber identification cards, then redundant operations are reduced and power is conserved, but the system complexity increases
Solution Approach 1:
The patent applies preliminary action by first determining whether two subscriber identification cards meet the conditions for combined mobility management (both in standby state, specific relationship between cards). Only when conditions are satisfied does the system perform joint cell selection and reselection evaluation. This preliminary check avoids unnecessary complexity in cases where combined management is not applicable, while enabling power-saving benefits when conditions are met.
Solution Approach 2:
The system dynamically switches between independent and combined mobility management modes based on the operational state of the two cards. When both cards are in standby state and meet specific conditions, the system transitions to combined mobility management; otherwise, it maintains independent management. This dynamic adaptation optimizes power consumption without permanently increasing system complexity.
Data Source
AI summary
Provided are a mobility management method and apparatus, and a terminal. The method comprises: a terminal determining that the mobility management of a first subscriber identification module and of a second subscriber identification module can be subjected to joint processing; and the terminal sending first indication information to a network side, wherein the first indication information is used for indicating that the mobility management of the first subscriber identification module and of the second subscriber identification module can be subjected to joint processing.