Cell DTX/DRX Time-Window Skipping for Urgent Traffic QoS
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Solution Overview
Problem
Network traffic unpredictability in ultra-reliable low latency communications (URLLC) and extended reality (XR) can cause latency and degrade QoS performance due to configured cell DTX/DRX, leading to reduced signaling efficiency and increased overhead when urgent traffic bursts occur.
Innovation Solution
A method where network devices send control information to user devices indicating a time window during which configured cell DTX/DRX is skipped, allowing data transmission and reception without deactivating or modifying the DTX/DRX configuration, thereby increasing signaling efficiency and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If cell DTX/DRX is configured to save energy, then energy consumption is reduced, but latency increases and QoS performance degrades for urgent traffic
Solution Approach 1:
The patent applies dynamics by making the cell DTX/DRX configuration adjustable and flexible. The network device can dynamically activate or deactivate cell DTX/DRX based on current traffic conditions, allowing the system to adapt between energy-saving mode and low-latency mode as needed, thus resolving the contradiction between energy consumption and latency
Solution Approach 2:
The patent changes the parameter of cell DTX/DRX configuration from a static setting to a dynamic one that can be activated or deactivated based on traffic conditions. By changing the operational state parameter of cell DTX/DRX, the system can optimize between energy saving and QoS performance for different traffic scenarios
2Reliability
If cell DTX/DRX is deactivated to ensure QoS for urgent traffic, then QoS performance improves, but signaling overhead increases and energy-saving performance decreases
Solution Approach 1:
The patent applies preliminary action by having the network device proactively monitor traffic conditions and preemptively activate or deactivate cell DTX/DRX before urgent traffic bursts occur. This allows the system to prepare for QoS requirements without needing to reactively deactivate/activate frequently, thereby reducing signaling overhead
Solution Approach 2:
The patent implements feedback mechanisms where the network device continuously monitors traffic conditions and adjusts cell DTX/DRX configuration accordingly. This feedback loop allows the system to maintain QoS performance when needed while minimizing unnecessary signaling operations, thus reducing overall signaling overhead
Data Source
AI summary
The present disclosure relates to cell DTX/DRX in mobile communications systems. A network device configured with cell DTX/DRX is configured to send control information to a user device. The control information indicates a time window and is used to notify the user device that the configured cell DTX/DRX is to be skipped during the time window. Then, the network device and the user device are configured to skip the configured cell DTX/DRX during the time window temporarily without deactivating or modifying the configured cell DTX/DRX. Before and after the time window, the configured cell DTX/DRX still applies to the network device and the user device. In this way, urgent data can be transmitted temporarily during the time window, and the configured DTX/DRX is not substantially affected. In this way, more flexibility can be introduced and traffic QOS can be assured.