UE Secondary Receiver Wake-Up for Low-Power Signal Monitoring
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Solution Overview
Problem
Existing cellular mobile communication systems face significant power consumption issues due to the need for terminals to monitor power-saving signals using primary transceivers, which are energy-intensive.
Innovation Solution
Implementing a secondary receiver in user equipment (UE) to monitor power-saving signals, allowing the primary transceiver to remain in a sleep mode and reducing power consumption by using a lower-power secondary receiver to determine whether to wake up the primary transceiver for further monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the primary transceiver monitors power-saving signals, then the monitoring reliability is improved, but the power consumption increases
Solution Approach 1:
A secondary receiver is introduced as an intermediary component to monitor power-saving signals. This secondary receiver has lower power consumption characteristics compared to the primary transceiver, while still performing the monitoring function. The primary transceiver remains in sleep mode during this process, and is only activated when the secondary receiver detects a wake-up indication, thus resolving the contradiction between monitoring reliability and power consumption.
2Speed
If the primary transceiver remains active to monitor signals, then the response speed is improved, but the power consumption increases
Solution Approach 1:
The system dynamically switches between different operational states. The primary transceiver alternates between active and sleep modes based on the monitoring results from the secondary receiver. When the secondary receiver detects a wake-up signal, the primary transceiver transitions from sleep to active state, enabling fast response when needed while minimizing power consumption during normal operation.
Solution Approach 2:
The monitoring function is performed periodically through the secondary receiver at lower power states, with the primary transceiver activated only when necessary. This periodic monitoring approach allows the system to maintain responsiveness while significantly reducing overall power consumption compared to continuous active monitoring.
Data Source
AI summary
An information transmission method is performed by user equipment (UE). The method includes: receiving a first-type power-saving signal through a secondary receiver, wherein the first-type power-saving signal is configured to wake up the UE to monitor at least one of a second-type power-saving signal or predetermined data scheduling through a primary transceiver.