Differentiated DRx Parameter Configuration for UE Service Profiles
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Solution Overview
Problem
Existing discontinuous reception (DRx) technologies in wireless mobile networks do not effectively differentiate DRx parameters based on user equipment (UE) service profiles, leading to inefficient power management and latency issues.
Innovation Solution
The proposed solution differentiates DRx parameters among UEs based on their service profiles, including Quality of Service (QoS) requirements and UE group identities, by generating a DRx profile that adjusts parameters such as the DRx On Duration Timer, DRx Short Cycle Timer, DRx Inactivity Timer, and DRx Retransmission timer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If DRx parameters are standardized for all UEs, then network operation is simplified, but power saving efficiency and latency performance deteriorate due to inability to differentiate service requirements
Solution Approach 1:
The patent applies local quality by differentiating DRx parameters based on UE service profiles. Specifically, the network device determines different DRx parameters (such as drx-OnDurationTimer, drx-SlotOffset, drx-InactivityTimer) for different UEs according to their service requirements, QoS identifiers, and subscription information. This allows each UE to receive customized DRx configuration that matches its specific power saving needs and service latency requirements, rather than applying a uniform configuration to all UEs.
2Device complexity
If DRx parameters are standardized for all UEs, then configuration management is simplified, but latency performance worsens due to inability to accommodate different service requirements
Solution Approach 1:
The patent implements local quality by tailoring DRx parameters to specific UE service profiles. The network device determines differentiated DRx configurations based on service requirements, QoS identifiers, and subscription information. For example, UEs with latency-sensitive services receive DRx parameters that enable faster wake-up and shorter wait times, while UEs with non-critical services use longer DRx cycles for maximum power saving. This personalized configuration approach optimizes latency performance for each service type.
3Use of energy by moving object
If differentiated DRx parameters are implemented based on service profiles, then power saving efficiency and latency performance improve, but network device complexity increases due to additional parameter management
Solution Approach 1:
The patent applies preliminary action by pre-configuring service profiles in the network device that contain template DRx parameter sets for different service types. When a UE connects, the network device matches the UE's QoS identifier and subscription information against these pre-defined service profiles and retrieves the corresponding DRx parameters. This approach avoids the need for complex real-time calculations and simplifies the parameter determination process, reducing network device complexity while still enabling differentiated DRx configuration.
4Loss of time
If differentiated DRx parameters are implemented based on service profiles, then latency performance improves for specific services, but system complexity increases due to profile-based differentiation
Solution Approach 1:
The patent implements preliminary action by establishing service profiles in advance that map QoS identifiers and subscription information to specific DRx parameter configurations. The network device maintains a repository of these pre-defined profiles, each optimized for specific service types (e.g., voice, video, data). When configuring DRx for a UE, the system performs a lookup based on the UE's service profile match, which simplifies the complexity by replacing complex real-time optimization algorithms with straightforward profile-based selection.
Data Source
AI summary
A device receives a message associated with creating a session for a User Equipment device (UE), the messaging identifying a Quality of Service (QOS) for the UE. The device adjusts discontinuous reception (DRx) parameters for the UE based on the identified QoS for the UE and instructs the UE to increase or decrease a DRx wait time based on the adjusted DRx parameters.