Electronic Device 4G 5G Connection Management
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Solution Overview
Problem
Existing electronic devices face challenges in efficiently transitioning between 4G and 5G cellular communication modes, leading to prolonged search times for nodes supporting the 5G standalone mode after releasing a 4G call connection, and potential failures in establishing 5G connections.
Innovation Solution
The electronic device includes first and second communication circuits for supporting 4G and 5G cellular communications, respectively. A processor controls the communication circuits to release the 4G connection and establish the 5G connection in response to call connection requests, and determines whether to maintain or release the 5G connection based on the receipt of specific system information blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device releases the 4G connection and searches for a 5G node after call connection termination, then the device can reconnect to 5G mobile communication, but it takes a long time to search for a node that supports the SA mode
Solution Approach 1:
The electronic device performs preliminary actions by maintaining the 5G connection in a suspended state rather than fully releasing it. The device keeps the radio resource control (RRC) connection alive and continues to monitor system information blocks during the call on 4G network, so that when the call ends, the device can quickly resume 5G data transmission without performing a complete node search.
Solution Approach 2:
The device maintains continuous monitoring of 5G system information blocks even while operating on 4G for call services. This continuous action ensures that the device remains aware of 5G network conditions and can seamlessly transition back to 5G data transmission immediately after call termination, eliminating the interruption and search time that would otherwise occur.
2Ease of operation
If the electronic device releases the first cellular communication connection to perform second cellular communication, then call connection can be established, but data transmission or reception may be limited if the search for 5G node fails
Solution Approach 1:
The device performs preliminary monitoring of 5G system information blocks before fully transitioning to 4G for call services. By keeping the 5G RRC connection suspended and continuing to receive system information, the device ensures that 5G network parameters are already cached and ready, so data transmission can resume immediately without failure risk after call termination.
Solution Approach 2:
The device uses the 4G network as an intermediary for call services while maintaining a suspended 5G connection in the background. This intermediary approach allows the device to utilize 4G for voice calls while preserving the 5G data pathway, ensuring that data transmission reliability is maintained through the 5G connection that remains active but suspended during the call period.
3Productivity
If the electronic device maintains the second cellular communication connection after call termination, then data communication can continue, but the connection may interfere with reestablishing the first cellular communication
Solution Approach 1:
The device dynamically manages connection states by implementing a suspended 5G connection that can be quickly activated or deactivated based on network conditions and service requirements. The RRC connection remains in a suspended state rather than being fully released, allowing flexible transition between active 5G data transmission and 4G call services without requiring complex reconnection procedures.
Solution Approach 2:
The device changes the operational parameters of the 5G connection from fully active to suspended state during call services. By modifying the connection state parameter rather than maintaining it fully active, the device reduces interference with 4G call services while preserving the ability to quickly resume 5G data transmission, simplifying connection management compared to maintaining full dual-active connections.
Data Source
AI summary
In an electronic device and a method for operating an electronic device according to various embodiments of the disclosure, the electronic device may include: a first communication circuit configured to support first cellular communication; a second communication circuit configured to support second cellular communication; and a processor, and the processor may be configured to: control the second communication circuit such that the first cellular communication connection is released and the second cellular communication connection is performed or the second cellular communication connection is maintained in response to reception and/or transmission of a call connection request message while being connected to a network, determine, in response to termination of the call connection, whether to release the second cellular communication based on whether at least one condition including a condition related to whether a system information block receivable via the second cellular communication is received is satisfied, and perform the first cellular communication connection based on information for the first cellular communication connection included in the system information block.