Uplink Signaling Active Time Configuration for Power Saving
Solution Overview
Problem
Current wireless communication technologies face challenges in optimizing uplink signaling transmission to reduce power consumption while maintaining high reliability and low latency, especially for advanced applications like Extended Reality (XR) and Cloud Gaming, which require efficient resource management and battery life extension.
Innovation Solution
The method involves configuring an active time period for uplink signaling transmission, allowing for concentrated power-saving during specific windows or patterns, where non-active time includes different types of uplink signals, and the active time is determined by various conditions such as RRC signaling, DRX configurations, and timer settings, enabling efficient power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink signaling is transmitted continuously to maintain high reliability and low latency, then communication reliability and latency performance are improved, but power consumption increases
Solution Approach 1:
The patent implements periodic uplink signaling transmission by defining specific active time windows (e.g., based on DRX cycles, periodicity parameters, and offset values) during which UE transmits uplink signals. Between these periodic active windows, the UE enters non-active periods where transmission is suspended, thereby reducing power consumption while maintaining communication reliability through the periodic nature of the transmission pattern.
Solution Approach 2:
The patent dynamically adjusts the active time windows based on multiple conditions including DRX configuration, periodicity settings, offset values, and network feedback. The active time configuration can be modified through RRC signaling, MAC CE, or DCI to adapt to changing traffic conditions, allowing the system to optimize between power saving and communication performance in real-time.
2Use of energy by moving object
If uplink signaling transmission is concentrated in specific time windows to save power, then power consumption is reduced, but transmission delay may increase
Solution Approach 1:
The patent configures uplink signaling transmission in advance by pre-defining active time windows through RRC signaling or MAC CE before actual data transmission is needed. This preliminary configuration allows the UE to prepare transmission resources and timing ahead of time, reducing the delay that would otherwise occur during the transmission act itself while still enabling power-saving non-active periods.
Solution Approach 2:
The patent adjusts transmission parameters including periodicity values, offset configurations, and active time durations to optimize the balance between power consumption and transmission delay. By carefully tuning these parameters, the system can ensure that active time windows occur frequently enough to meet latency requirements while remaining long enough and frequent enough to achieve significant power savings.
3Productivity
If active time configuration is made flexible with multiple conditions and parameters, then power management efficiency is improved, but system complexity increases
Solution Approach 1:
The patent segments the uplink transmission timeline into distinct active and non-active time windows defined by multiple independent parameters including DRX cycles, periodicity values, offset configurations, and duration settings. This segmentation allows each parameter to be configured and optimized independently, improving power management efficiency while organizing the complexity into manageable, modular components that can be controlled through standardized signaling mechanisms.
Data Source
AI summary
In wireless communication, a configuration of uplink (“UL”) signaling transmissions can be through a specific window or pattern. The UL transmission can be concentrated in a time period to save power. Specifically, an active time is determined as a time period for UL signals. Non-active time may include different types of UL signals. The active time may be configured and enabled under different conditions.