Radio Resource Adapter Layer for Dual-Card Carrier Conflict Resolution
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Solution Overview
Problem
Dual-card-dual-standby mobile phones with a single RF chip face carrier conflicts when receiving system information and paging messages from multiple carriers, especially when these carriers belong to different operators, leading to inefficiencies and increased cost due to the need for separate baseband processing modules.
Innovation Solution
A method is introduced that includes a radio resource adapter layer between the RRC and physical layers to detect and process system information and paging messages, calculating positions, determining conflict types, setting priority levels, and handling services accordingly to resolve conflicts by prioritizing higher-priority services and abandoning lower-priority ones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single RF chip is used to receive system information and paging messages from two carriers, then cost and device size are reduced, but carrier conflict occurs between main and subordinate cards
Solution Approach 1:
The patent segments the baseband processing functions into separate main baseband processing module and subordinate baseband processing module, allowing independent processing of system information and paging messages for main and subordinate cards respectively. This segmentation resolves the carrier conflict while maintaining single RF chip architecture.
Solution Approach 2:
The patent introduces a conflict resolution mechanism as an intermediary layer between the RF chip and baseband processing modules. This mediator detects carrier conflicts and coordinates the processing of system information and paging messages from different carriers, preventing interference while using shared hardware resources.
2Reliability
If separate baseband processing modules are used for main and subordinate devices, then carrier conflict is avoided, but cost and device size increase
Solution Approach 1:
The patent merges the RF chip resources for receiving system information and paging messages from both main and subordinate cards into a single shared RF chip. By combining the receiving function while maintaining separate baseband processing, the patent reduces hardware quantity while avoiding carrier conflict through functional separation.
3Device complexity
If a single chipset is used for dual-card-dual-standby, then device size and cost are minimized, but system information and paging messages from different operators conflict
Solution Approach 1:
The patent segments the baseband processing into separate modules for main and subordinate cards, enabling independent handling of system information and paging messages. This segmentation prevents information loss from carrier conflicts while maintaining the simplified single-chipset architecture.
Solution Approach 2:
The patent changes the processing parameters by introducing separate baseband processing modules with different processing paths for main and subordinate cards. This parameter change allows the single chipset to handle multiple carriers without information conflict by treating each card's data stream independently.
Data Source
AI summary
The present invention provides a method for dealing with the carrier conflict between the main card and subordinate card of a single-chip dual-card-dual-standby mobile phone, which includes a set one set of antenna, RF module and baseband processing chip and further comprises a radio resource adapter layer provided between the RRC layer and the physical layer. The RRC module calculates the position of the carriers of the main card and the subordinate card. The radio resource adapter layer determines the relative position between the carriers of main card and subordinate card so as to determine the type of the conflict, set priority levels to the services of the main card and subordinate card, and process the services according to the priority levels so as to avoid the conflict.