Wireless Repeater Power Saving Through Adaptive Control Monitoring
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Solution Overview
Problem
Wireless repeaters face high power consumption due to diligent monitoring of control channels when no UE is attached, making it inefficient and wasteful.
Innovation Solution
Wireless repeaters operate in a power-saving mode with a slow monitoring periodicity for control information from the base station, transitioning to a fast periodicity upon detection of a UE attachment, and adjust monitoring based on control commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless repeaters diligently monitor control channels to ensure reliable communication, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The repeater dynamically adjusts its monitoring periodicity based on operational state. When a UE is attached, the repeater monitors control channels at a first (frequent) periodicity to ensure reliable communication. When no UE is attached, it switches to a second (reduced) periodicity to conserve power, thus adapting the monitoring behavior to current operational needs
Solution Approach 2:
The invention changes the monitoring periodicity parameter from a fixed value to a variable value that depends on UE attachment status. By switching between first and second periodicity values, the system optimizes the balance between communication reliability and power consumption based on whether UEs are currently connected
2Speed
If wireless repeaters monitor control channels frequently to detect UE attachment quickly, then response speed is improved, but power consumption increases
Solution Approach 1:
The monitoring periodicity is dynamically adjusted based on whether UEs are attached. During active communication periods, frequent monitoring ensures quick response to control information. During idle periods, reduced monitoring lowers power consumption while still maintaining the ability to detect UE attachment when it occurs
3Loss of energy
If wireless repeaters reduce monitoring frequency to save power, then power efficiency is improved, but detection accuracy of control information deteriorates
Solution Approach 1:
The system dynamically adapts monitoring frequency to operational context. When UEs are attached and control information is likely to be present, frequent monitoring ensures accurate detection. When no UEs are attached, reduced monitoring is sufficient since there is no control information to detect, thus maintaining detection accuracy when needed while improving power efficiency during idle periods
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. The described techniques relate to improved methods, systems, devices, and apparatuses that support power saving of wireless repeaters. Generally, the described techniques provide for wireless device (e.g., wireless repeater, wireless relay device, etc.) power savings in the absence of an attached (e.g., connected) user equipment (UE). For example, a wireless repeater may operate in a power saving mode and monitor for control information from a base station according to a slow state (e.g., according to a relatively long monitoring periodicity). Upon detection of possible UE attachment to the base station (e.g., upon detection of a random access channel (RACH) message), the wireless repeater may transition to monitoring for control information from the base station according to a fast state (e.g., according to a relatively short, or more frequent, monitoring periodicity).