Dual Connectivity Uplink Transmission via DRX State Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In dual connectivity environments, user equipment (UE) experiences uplink delays and increased power consumption due to the need to change states between different network communication paths, particularly when transitioning from a battery-saving state to an active state to monitor the physical downlink control channel (PDCCH) for data reception or transmission.
Innovation Solution
An electronic device with separate communication processors for each network, allowing the UE to identify when the secondary communication processor is in a discontinuous reception (DRX) mode and transmit uplink data via the secondary path, even if the primary path is in a DRX mode, thereby avoiding the need for state changes and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE changes state from battery-saving state to on-duration state to monitor PDCCH for data transmission, then data transmission capability is improved, but power consumption increases
Solution Approach 1:
The patent applies preliminary action by maintaining the secondary communication processor in an on-duration state in advance, before data transmission is needed. This allows the processor to be ready for immediate data transmission without needing to wake up from a battery-saving state, thus resolving the contradiction between transmission capability and power consumption.
2Productivity
If the UE changes state between DRX mode and on-duration state for data transmission, then data transmission responsiveness is improved, but uplink delay increases
Solution Approach 1:
The patent applies preliminary action by keeping the secondary communication processor in an on-duration state before data transmission is required. This preliminary maintenance of the active state eliminates the need for state transitions during data transmission, thereby improving responsiveness and reducing uplink delay simultaneously.
3Adaptability or versatility
If the UE uses separate communication processors for each network, then network communication independence is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the communication system into separate communication processors, with each processor independently handling a specific network. This segmentation provides clear functional separation and independence, while the modular architecture actually simplifies the overall system design and maintenance compared to a monolithic approach, thus resolving the contradiction between independence and complexity.
Data Source
AI summary
An electronic device is provided. The electronic device includes a first communication processor configured to support first network communication with a first network, and a second communication processor configured to support second network communication with a second network, which is different from the first network. If both the first network communication and the second network communication are configured to be in a state capable of transmitting data, when the second communication processor is in a discontinuous reception (DRX) mode, the first communication processor is configured to identify an uplink packet to be transmitted and transmit the uplink packet using the first network communication, based on identifying that the second communication processor is in the DRX mode, and the second communication processor maintains the DRX mode, while the uplink packet is transmitted. Other various embodiments may be possible.