Dual-RAT Uplink Switching for Stable Throughput in Dual Connectivity
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Solution Overview
Problem
Existing dual connectivity systems in 5G communication face challenges in efficiently managing uplink data transmission across different radio access technologies (RATs) due to varying channel states, leading to suboptimal throughput.
Innovation Solution
An electronic device is configured to establish dual connections based on different radio access technologies (RATs) and dynamically adjust uplink data transmission based on channel conditions, prioritizing one connection when the other experiences a poor uplink state to maintain optimal throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink data is transmitted through both connections simultaneously, then data transmission capacity increases, but throughput becomes suboptimal when channel conditions vary
Solution Approach 1:
The system dynamically switches between simultaneous transmission mode and selective transmission mode based on channel conditions. When channel states are good, both connections transmit simultaneously to maximize capacity. When one connection experiences poor channel state, the system dynamically redirects all uplink data through the other connection to maintain throughput optimality, making the transmission strategy adaptive rather than static.
Solution Approach 2:
The system changes the transmission parameter (which connection to use) based on channel state parameters. By monitoring channel quality indicators and threshold values, the system adjusts its behavior to either use both connections or switch to a single connection, thereby optimizing throughput under varying channel conditions while maintaining the capability for high data transmission capacity when conditions permit.
2Reliability
If dual connectivity is established, then communication reliability improves, but system complexity increases
Solution Approach 1:
The system extracts and isolates the complexity management to specific components: the processor identifies channel states and makes switching decisions, while the transmitter executes the simplified action of selecting which connection to use. This separation allows the system to maintain dual connectivity for reliability while managing complexity through dedicated functional blocks rather than distributed complexity throughout the entire system.
Solution Approach 2:
The system performs self-monitoring of channel states and self-decision-making regarding which connection to use. The processor automatically identifies when channel conditions deteriorate and switches transmission paths without external intervention, enabling the system to maintain optimal performance while managing its own complexity internally rather than requiring external control mechanisms.
3Productivity
If channel state monitoring is performed continuously, then transmission optimality improves, but energy consumption increases
Solution Approach 1:
The system implements feedback by monitoring channel state information and using this feedback to adjust transmission decisions. The processor continuously receives channel state feedback, compares it against threshold values, and adjusts the transmission path accordingly. This feedback mechanism enables optimal transmission decisions to be made based on actual channel conditions rather than continuous high-power monitoring, balancing transmission optimality with energy efficiency.
Solution Approach 2:
The system changes its monitoring and transmission parameters based on channel conditions. Instead of maintaining constant high-level monitoring and transmission, the system adjusts its behavior: when channel conditions are good, it may reduce monitoring intensity or maintain current transmission; when conditions change, it activates more intensive monitoring and switches parameters. This dynamic parameter adjustment reduces energy consumption while maintaining transmission optimality.
Data Source
AI summary
According to an embodiment, an electronic device may comprise at least one communication processor. The at least one communication processor may be configured to: establish, based on dual connectivity, a first connection based on a first radio access technology (RAT) and a second connection based on a second RAT; transmit first uplink data based on the first connection and transmit second uplink data based on the second connection, wherein a throughput corresponding to the second connection may be a first value; identify at least one first parameter associated with the first connection and at least one second parameter associated with the second connection; perform at least one operation for transmitting, based on the second connection, uplink (UL) data with a throughput less than the first value, based on the at least one first parameter satisfying a first condition indicating a good uplink channel state and that the at least one second parameter satisfying a second condition indicating a poor uplink channel state; and based on performing the at least one operation, transmit third uplink data based on the first connection and transmit fourth uplink data based on the second connection, wherein a throughput corresponding to the second connection may be less than the first value.