UE Scheduling Offset Threshold Switching for Lower Power Delay
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in power consumption and scheduling delays due to fixed minimum scheduling offsets, leading to unnecessary buffering of total bandwidth and increased power consumption at user equipment (UE).
Innovation Solution
User equipment (UE) automatically adjusts scheduling offset thresholds and communication configurations based on control messages, allowing for dynamic changes in scheduling offsets and configurations to reduce power consumption and optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a fixed minimum scheduling offset is used, then scheduling simplicity is maintained, but power consumption increases and scheduling efficiency decreases
Solution Approach 1:
The patent implements dynamic scheduling offset thresholds that can be adjusted based on UE capabilities and channel conditions. The network can configure different threshold values for different UEs or change thresholds over time, transitioning from a static fixed offset approach to a dynamic adaptive approach that optimizes power consumption while maintaining scheduling efficiency
Solution Approach 2:
The patent changes the scheduling offset parameter from a fixed value to a configurable threshold that can be modified by the network. By adjusting the scheduling offset threshold parameter based on UE feedback and network conditions, the system achieves lower power consumption without excessive complexity
2Loss of time
If a fixed minimum scheduling offset is used, then scheduling implementation is simplified, but scheduling delay increases
Solution Approach 1:
The dynamic threshold mechanism allows the scheduling offset to be adjusted in real-time based on channel conditions and UE capabilities. When conditions permit, smaller offsets can be used to reduce scheduling delay, while maintaining the ability to increase offsets when needed, thus optimizing time performance without excessive complexity
Solution Approach 2:
The scheduling offset threshold parameter is made configurable and adjustable, allowing the network to optimize it for low latency scenarios when possible. This parameter change enables reduced scheduling delays compared to fixed offsets, while the configuration mechanism keeps implementation complexity manageable
3Reliability
If total bandwidth buffering is performed, then transmission reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies different buffering requirements to different UEs based on their capabilities and channel conditions. By configuring scheduling offset thresholds per-UE or per-group, the system allows UEs with better conditions to use smaller offsets and less buffering, while maintaining reliability for UEs that need it, thus reducing overall power consumption without sacrificing transmission reliability
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Generally, the described techniques may enable a user equipment (UE) to automatically (e.g., without explicit configuration signaling) change a scheduling offset threshold from a first scheduling offset threshold to a second scheduling offset threshold. For example, the UE may use the first scheduling offset threshold prior to receiving a first control message, and then the UE may change to the second scheduling offset threshold based on receiving the first control message. The second scheduling offset threshold may be relatively smaller than the first scheduling offset threshold. Additionally, or alternatively, the UE may automatically adjust a communication configuration from a first communication configuration to a second communication configuration based on receiving the first control message.