Resolving Reception Conflicts in Multi-Card Mobile Terminals
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Solution Overview
Problem
Dual-card dual-standby handsets face signal conflicts due to the lack of synchronization between different base stations, leading to communication disruptions in the standby mode.
Innovation Solution
The method involves managing logical channel conflicts using redundant frames corresponding to the BCCH or CCCH of a SIM card, allowing for synchronization and conflict resolution in the GSM network, ensuring compatible operation with existing technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single RF module is used for dual-card dual-standby, then cost and device volume are reduced, but signal reception conflicts occur due to lack of synchronization between base stations
Solution Approach 1:
The patent implements dynamic time slot allocation and switching mechanisms that allow the single RF module to dynamically switch between receiving signals from different base stations. The system dynamically adjusts reception timing based on synchronization status and conflict detection, enabling adaptive resource allocation that resolves signal conflicts while maintaining dual-card functionality.
Solution Approach 2:
The patent employs periodic synchronization checks and frame structure alignment between the two SIM cards. By organizing signal reception into periodic cycles with defined synchronization intervals, the system ensures that both SIM cards can operate with the single RF module without continuous signal conflicts, maintaining reliable communication through rhythmic coordination.
2Reliability
If two separate baseband transaction modules are used for each SIM card, then signal reception reliability is improved, but device cost and volume increase
Solution Approach 1:
The patent makes a single baseband transaction module universal by implementing virtualization and time-division multiplexing capabilities. The same baseband module serves both SIM cards through dynamic configuration and scheduling, eliminating the need for separate dedicated baseband modules while maintaining full functionality for both cards through software-defined resource allocation.
Solution Approach 2:
The patent combines two separate baseband transaction modules into one shared module that handles both SIM cards. By merging the hardware resources and using intelligent scheduling algorithms, the system achieves functional equivalence to having separate modules while reducing device complexity, cost, and power consumption through resource consolidation.
Data Source
AI summary
The present invention provides a method of resolving reception conflicts for a multi-card multi-standby mobile terminal, which is for resolving the conflicts of the mobile terminal based on Global System for Mobile communication (GSM) network and in the standby mode, including: acquiring synchronization result with base stations and judging if there are time slot conflicts between multiple SIM cards of the multi-card multi-standby mobile terminal according to the synchronization result; if the conflicts being non-time slot conflicts, receiving and processing data of different SIM cards in different time slots of a TDMA frame; and if the conflicts being time slot conflicts, receiving and processing data of a non-current SIM card in redundant frames of BCCH or CCCH of a current SIM card. The present invention manages the logical channel conflicts with other SIM cards through using the redundant frames corresponding to the BCCH or CCCH of a SIM card, thereby resolving the signal conflicts because of the signals from different base stations being not synchronized for a dual-card dual-standby handset and is compatible with the prior art.


