Dual-SIM RRC Configuration Using Shared Common Connections
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Solution Overview
Problem
Existing wireless communication systems with dual-SIM configurations face significant network bandwidth consumption and latency during RRC connection and configuration procedures, with little progress made in streamlining or prioritizing these processes, rendering dual-SIM solutions inoperable.
Innovation Solution
The implementation of partitioned RRC configurations, including common configurations for both SIMs and separable configurations, reduces network footprint by applying common configurations only to one SIM, with the primary SIM performing functions for the other SIM, thereby optimizing dual-SIM operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate RRC configuration messages are sent to both SIMs, then each SIM receives complete configuration information, but network bandwidth consumption increases and latency is introduced
Solution Approach 1:
The patent merges common RRC configuration information into a single message that is sent once and applied to both SIMs simultaneously. This combines what would traditionally be two separate configuration messaging operations into one unified operation, reducing network bandwidth consumption while ensuring both SIMs receive complete configuration information.
Solution Approach 2:
The RRC configuration message is designed with universal applicability, containing configuration parameters that can be applied to multiple SIMs. The single configuration message serves multiple functions by configuring both SIMs at once, eliminating redundant messaging and reducing overall network traffic.
2Reliability
If separate RRC configuration messages are sent to both SIMs, then each SIM is properly configured, but configuration latency increases
Solution Approach 1:
The patent prepares a unified RRC configuration message in advance that contains all necessary configuration information for both SIMs. This preliminary preparation of a comprehensive configuration message eliminates the sequential sending and processing delays that would occur with separate configuration messages, reducing overall configuration latency while maintaining configuration accuracy.
Solution Approach 2:
By merging the configuration operations into a single unified message that configures both SIMs simultaneously, the patent eliminates the time delay associated with sending and processing separate configuration messages sequentially, thereby reducing configuration latency while ensuring proper configuration of both SIMs.
3Ease of manufacture
If traditional single-SIM RRC procedures are used for dual-SIM, then implementation is simple, but network footprint is excessive
Solution Approach 1:
The patent extends traditional single-SIM RRC procedures to handle dual-SIM scenarios by creating a universal configuration message format that can configure one or more SIMs. This maintains implementation simplicity by building upon existing single-SIM procedures while adding multi-SIM capability, thereby reducing network footprint without requiring completely new implementation approaches.
Data Source
AI summary
A Single-Link DSDA apparatus is disclosed. In one aspect of the disclosure, the RRC connections associated with two SIMS have common connections that can both be reconfigured by providing one SIM with the configuration for its RRC connection along with an indication that the other SIM is to use the common configuration for its RRC configuration. In other aspects of the disclosure, a primary SIM is established which can only perform certain tasks. In still other aspects of the disclosure RRC connection establishment and release of a dual-SIM UE can be performed by using on the primary connection to send common configuration, and using both connection for different configurations.