Network-Controlled Repeater Switching for Interference and Energy Efficiency
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Solution Overview
Problem
Existing network-controlled repeaters lack defined on-off information for efficient interference management and energy efficiency, necessitating a solution for determining and transmitting such information based on time-division duplexing configuration, repeater device state, and channel qualities.
Innovation Solution
A method for determining and transmitting control information to network-controlled repeaters based on time-division duplexing configuration, power level, hardware state, and channel qualities, including resource allocation and flexible switching modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an RF repeater is used to amplify-and-forward signals, then network coverage is extended in a cost-effective manner, but interference management and energy efficiency are not improved
Solution Approach 1:
The repeater transitions from a static amplify-and-forward operation to a dynamic on-off control mechanism. The network device dynamically adjusts the repeater's operational state based on real-time channel quality measurements, allowing the system to adapt to changing interference conditions and optimize coverage while managing interference effectively
Solution Approach 2:
The system changes the operational parameter of the repeater from continuous amplification to controlled on-off states. By modifying the repeater's state parameter (on or off) based on channel quality comparisons between direct and relayed links, the system achieves better interference management while maintaining coverage where needed
2Area of stationary object
If an RF repeater operates continuously to maintain coverage, then network coverage is maintained, but energy efficiency is reduced
Solution Approach 1:
Instead of continuous operation, the repeater employs periodic on-off cycles based on channel quality conditions. The network device periodically evaluates channel qualities and adjusts the repeater's state accordingly, allowing the system to maintain coverage during high-quality conditions while saving energy during low-quality conditions when direct transmission is sufficient
Solution Approach 2:
The system optimizes energy efficiency by changing the repeater's operational parameter (on/off state) based on channel quality comparisons. When the direct link quality exceeds the relayed link quality by a threshold, the repeater is turned off, reducing energy consumption while maintaining adequate coverage through alternative means
3Use of energy by stationary object
If on-off information is added for interference management, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The system extracts only the essential control information needed for on-off decision-making from the complex network state. The network device selectively collects and processes only the necessary parameters (channel quality measurements, link comparisons) required to determine repeater state, avoiding the complexity of managing comprehensive control information while achieving energy efficiency improvements
Solution Approach 2:
The repeater system implements self-service control where the network device autonomously makes on-off decisions based on measured channel qualities without requiring complex external control mechanisms. The system uses built-in measurement capabilities and simple comparison logic to determine when to activate or deactivate the repeater, reducing overall system complexity while maintaining energy efficiency
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A network device determines at least one of first information, second information or third information, the first information indicating a TDD configuration for a terminal device, the second information indicating at least one of a power level or a hardware state of a repeater device, the third information indicating channel qualities of a first link between the network device and the terminal device via the repeater device and a second link between the network device and the terminal device. The network device determines control information indicating turn-on or turn-off of the repeater device based on the at least one of the first information, the second information or the third information, and transmit the control information to the repeater device. In this way, determination and transmission of on-off information for a network-controlled repeater device is defined.