Multi-Card Terminal Capability Reporting via RRC Signaling
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Solution Overview
Problem
Multi-card terminals lack a unified standard for handling multiple SIM cards, leading to inconsistent behaviors and communication issues when paging messages are received, and vary in antenna configurations and supported frequency bands, complicating simultaneous operation of multiple SIM cards.
Innovation Solution
A method and apparatus for a multi-card terminal to report capability information to a base station, indicating its ability to support multiple SIM cards simultaneously, and receive configuration information to facilitate SIM card reporting when capabilities are lacking, using RRC signaling for efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-card terminals use individual terminal manufacturer implementations without unified standards, then terminal behaviors and handling manners become diverse and adaptable to different manufacturers' requirements, but communication consistency and interoperability deteriorate leading to inconsistent behaviors when paging messages are received
Solution Approach 1:
The patent introduces capability indication parameters (supportIndication) that change the state of terminal behavior from manufacturer-specific to standardized. By defining specific parameter values (first indication value for dual-card dual-standby dual-pass, second indication value for dual-card dual-standby single-pass), the system achieves consistent interpretation across different terminals while maintaining the ability to represent diverse capabilities.
Solution Approach 2:
The patent segments the terminal capability into distinct可识别 components: dual-card dual-standby dual-pass capability, dual-card dual-standby single-pass capability, and other capabilities. This segmentation allows the base station to query and configure each capability type independently through standardized procedures, resolving the contradiction between diversity and consistency.
2Adaptability or versatility
If multi-card terminals support multiple SIM cards with various antenna configurations and frequency bands, then the terminal capability and service coverage are improved, but the complexity of simultaneous operation and configuration management increases
Solution Approach 1:
The patent applies preliminary action by having the terminal pre-configure and indicate its capability status (dual-card dual-standby dual-pass, single-pass, or other capabilities) before actual communication occurs. The base station queries this capability in advance and provides corresponding configuration information, avoiding complex real-time decision-making during operation.
Solution Approach 2:
The patent implements feedback through the capability indication mechanism where the terminal reports its configuration status to the base station, which then provides appropriate configuration information in response. This closed-loop feedback system simplifies complexity by automating the configuration management based on terminal capabilities rather than requiring manual or complex automated configuration.
3Productivity
If multi-card terminals implement various dual-card modes (dual-standby single-pass, dual-pass, etc.), then the service communication capability is improved, but the signaling resource consumption and configuration overhead increase
Solution Approach 1:
The patent uses parameter changes to represent different service communication modes through discrete indication values. Instead of complex signaling to negotiate capabilities, the terminal simply indicates its capability state (first value for dual-pass, second value for single-pass), and the base station responds with appropriate configuration. This reduces signaling overhead while maintaining full service communication capability.
Data Source
AI summary
An information reporting method includes reporting capability information, which is used for indicating a target terminal capability, to a base station, wherein the target terminal capability is used for indicating the capability of a multi-card terminal to support a plurality of SIM cards operating at the same time. A base station configures target configuration information for a multi-card terminal when the multi-card terminal does not have a target terminal capability, so that the multi-card terminal can report SIM card information of a plurality of SIM cards when the multi-card terminal does not support the target terminal capability.