UE Component Carrier μSleep Control via DCI Activity Decoding
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Solution Overview
Problem
Existing wireless communication systems, particularly 5G NR, face challenges in optimizing power consumption by user equipment (UE) components during idle periods, leading to inefficient power usage.
Innovation Solution
A method is introduced where UE components are switched to a microsleep (μSleep) mode based on the activity status of component carriers (CCs) determined by physical downlink control channel (PDCCH) decoding, allowing for selective activation of hardware modules associated with inactive CCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If UE components remain active to handle potential communications, then communication responsiveness is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic switching between active and microsleep modes based on real-time communication needs. The UE monitors activity status and transitions components between operational states, making the system adaptable rather than static. This resolves the contradiction by allowing the system to be responsive when needed while conserving power during idle periods.
Solution Approach 2:
The patent employs periodic monitoring of activity status and periodic transitions between active and microsleep modes. The UE checks for scheduled communications at intervals and activates components only when necessary, creating a rhythmic pattern of activity and rest. This periodic approach balances responsiveness with power conservation.
2Use of energy by moving object
If UE switches components to microsleep mode during idle periods, then power savings are improved, but communication delay increases
Solution Approach 1:
The patent uses preliminary action by scheduling component activation in advance based on known communication patterns. The UE examines scheduling information and wakes up components before actually needed for anticipated communications, eliminating wake-up delays while maintaining power savings during confirmed idle periods.
Solution Approach 2:
The patent implements feedback mechanisms where the UE continuously monitors activity status and adjusts microsleep activation accordingly. When communication activity is detected or scheduled, the system receives feedback and immediately transitions from microsleep to active mode, ensuring minimal delay while maintaining power efficiency during idle states.
3Use of energy by moving object
If UE monitors activity status of multiple component carriers, then power optimization is improved, but processing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the monitoring task into individual component carrier evaluations. Instead of treating all carriers uniformly, the UE assesses each carrier's activity status independently and applies microsleep mode on a per-carrier basis. This segmented approach optimizes power consumption without requiring complex holistic analysis of all carriers simultaneously.
Data Source
AI summary
A UE determines an activity status associated with each CC of a set of CCs based on PDCCH decoding of DCI. The set of CCs may be associated with hardware modules at the UE. An inactive set of CCs may be determined to have an inactive activity status. An active set of CCs may be determined to have an active activity status. The inactive set of CCs may be associated with a first set of hardware modules of the hardware modules. The active set of CCs may be associated with a second set of hardware modules of the hardware modules. The UE may activate a partial sleep mode at the first set of hardware modules associated with the inactive set of CCs.