Common DRX Cycle Alignment for Multi-Application Power Saving
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Solution Overview
Problem
Wireless communication devices face inefficiencies due to unaligned discontinuous reception (DRX) cycles across different applications and radio access technologies, leading to increased power consumption and resource congestion.
Innovation Solution
A user equipment (UE) determines a common DRX cycle that aligns with multiple applications and radio access technologies, allowing for synchronized wake-up periods and efficient resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different applications use distinct DRX cycles, then each application can operate independently according to its requirements, but the UE remains in always-on mode causing increased power consumption
Solution Approach 1:
The patent merges multiple distinct DRX cycles from different applications into a single common DRX cycle. The network device receives DRX cycle requests from multiple applications, determines a common DRX cycle that accommodates all applications, and configures this unified cycle to the UE. This combining approach allows the UE to enter sleep mode during overlapping idle periods while still meeting the monitoring requirements of all applications, thereby reducing power consumption while maintaining application independence.
2Ease of operation
If UEs access communication channels simultaneously, then channel access is simplified, but resource congestion increases
Solution Approach 1:
The patent implements periodic channel access by aligning DRX cycles across multiple UEs. The network device configures common DRX cycles that create periodic wake-up patterns, allowing UEs to access channels only during their designated wake-up periods. This periodic action distributes channel access over time, reducing simultaneous access conflicts and improving resource efficiency while maintaining operational simplicity through standardized cycle-based scheduling.
3Use of energy by moving object
If DRX cycles are aligned across applications, then power consumption is reduced through sleep mode, but coordination complexity increases
Solution Approach 1:
The patent introduces the network device as an intermediary that handles the complexity of DRX cycle coordination. Instead of requiring the UE to independently coordinate multiple application DRX cycles, the network device receives DRX requests from various applications, determines an appropriate common DRX cycle, and configures it to the UE. This intermediary approach centralizes the coordination complexity in the network while keeping the UE implementation simple, thereby enabling power savings without significantly increasing device complexity.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE), may receive, at a processing layer of the UE, sets of discontinuous reception (DRX) cycle parameters from a corresponding set of applications at an application layer of the UE. The UE may determine, based on the sets of DRX parameters, a common DRX cycle to satisfy each of the sets of applications. The UE may transmit the common DRX cycle to one or more layers in the user plane protocol stack of the UE. A base station may also receive a request, from the UE, for a set of DRX cycle parameters that satisfies the common DRX cycle of the UE. The base station may transmit an indication of the set of DRX parameters, and receive, from the UE, a confirmation of a DRX cycle associated with the set of DRX cycle parameters.