Sub-TTI User Equipment Modem Reconfiguration for Power Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, particularly in LTE technology, face challenges in reducing power consumption due to the slow adaptation to changing channel conditions within the sub-TTI time range, which is shorter than the typical transmission time interval.
Innovation Solution
User equipment (UE) identifies power consumption conditions within a sub-TTI time frame and configures its modem resources to reduce power consumption by activating or deactivating receiver chains, reconfiguring decoders or demodulators, and adjusting channel estimation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the UE performs operations to reduce battery consumption based on channel dynamics, scheduling rates, or data transmission status, then power consumption is reduced, but the adaptation speed is slow because these operations are performed on a time scale longer than the TTI
Solution Approach 1:
The patent segments the TTI into multiple sub-TTIs, allowing the UE to perform power consumption reduction operations at sub-TTI granularity. This enables faster adaptation to channel conditions by making reconfiguration decisions more frequently, resolving the contradiction between reducing power consumption and adapting quickly to channel changes.
Solution Approach 2:
The patent introduces dynamic reconfiguration of modem resources at sub-TTI intervals, allowing the system to adapt its power consumption characteristics in real-time based on changing channel conditions. This dynamic approach enables the UE to respond quickly to channel variations while managing power consumption effectively.
2Adaptability or versatility
If the UE reconfigures modem resources at sub-TTI intervals, then adaptation to changing channel conditions is improved, but device complexity increases due to more frequent reconfiguration operations
Solution Approach 1:
The patent applies local quality by reconfiguring only specific modem resources (such as receiver chains, decoders, or demodulators) that are currently active or most impacted by channel changes, rather than reconfiguring the entire modem system. This selective approach maintains high adaptability while reducing the overall complexity of reconfiguration operations.
Solution Approach 2:
The patent implements partial reconfiguration actions at sub-TTI intervals, reconfiguring only the necessary modem resources based on current channel conditions and data transmission requirements. This partial action approach provides sufficient adaptability to channel changes without requiring full system reconfiguration, thereby managing device complexity.
3Loss of time
If the UE activates or deactivates receiver chains, reconfigures decoders or demodulators, or adjusts channel estimation modes in sub-TTI range, then power consumption is reduced timely, but the control and management complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the UE continuously monitors channel conditions, data transmission status, and power consumption levels, then uses this feedback to make informed reconfiguration decisions at sub-TTI intervals. This feedback-driven approach enables timely power consumption reduction while managing control complexity through systematic decision-making based on actual system state.
Solution Approach 2:
The patent enables the UE to autonomously manage its own modem resource reconfiguration based on pre-defined criteria and algorithms. The UE performs self-assessment of channel conditions and power consumption needs, then automatically adjusts its own configuration without requiring complex external control, reducing the overall control and management complexity while maintaining timely response.
Data Source
AI summary
A method, a user equipment, an apparatus, and a computer program product for wireless communication are provided. The user equipment may identify a power consumption condition that relates to a downlink channel associated with the user equipment. The power consumption condition may correspond to a time period that is shorter than or equal to a transmission time interval of the user equipment. The user equipment may configure one or more modems of the user equipment to reduce power consumption during the time period.