Sidelink Minimum-K Parameter Reduces UE Power Consumption
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Solution Overview
Problem
Current wireless communication systems face challenges in minimizing the time delay between a sidelink grant and a scheduled sidelink data transmission, which affects power consumption and efficiency in device-to-device communications.
Innovation Solution
Implementing a sidelink minimum-k parameter to determine a minimum time delay between the sidelink grant and the scheduled sidelink data transmission, allowing user equipment (UE) to operate in a partial sleep state and reduce power consumption by temporarily turning off the radio frequency front-end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the time delay between sidelink grant and scheduled sidelink data transmission is minimized, then transmission efficiency is improved, but power consumption increases due to the radio frequency front-end remaining active
Solution Approach 1:
The patent introduces a minimum time delay parameter (minimum-k parameter) that defines the earliest time a UE can transmit or receive data after receiving a sidelink grant. This parameter change allows the UE to enter a partial sleep state during this minimum delay period, turning off the radio frequency front-end to save power while still meeting transmission efficiency requirements.
2Speed
If the radio frequency front-end remains active to enable timely data transmission, then transmission responsiveness is improved, but energy is wasted during idle periods
Solution Approach 1:
The patent implements periodic operation patterns where the UE alternates between active states (when data transmission is required) and partial sleep states (during minimum time delay periods). The UE wakes up at scheduled times to check for grants and enters sleep mode during the minimum-k parameter defined delay periods, creating a periodic on-off pattern that reduces energy waste while maintaining transmission responsiveness.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a sidelink grant scheduling a sidelink data transmission associated with one or more sidelink resources. The UE may determine a minimum time delay between the sidelink grant and the sidelink data transmission scheduled by the sidelink grant based at least in part on a value associated with a sidelink minimum-k parameter configured for the UE. Numerous other aspects are provided.