Network-Controlled Repeater Forwarding for Beam Failure Response
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Solution Overview
Problem
Legacy RF repeaters in 5G systems lack the ability to dynamically control their ON/OFF states based on data transmission needs, leading to unnecessary power consumption and interference, and do not address beam failure scenarios, which affect network throughput.
Innovation Solution
Implement a network-controlled repeater (NCR) with a mobile termination for beam failure detection and a forwarding entity that turns off forwarding during beam failure, allowing controlled ON/OFF states to match data transmission periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the repeater remains ON continuously to maintain signal forwarding capability, then the coverage reliability is improved, but power consumption increases and interference to other devices occurs
Solution Approach 1:
The repeater's forwarding entity dynamically changes its operational state between ON and OFF based on beam failure detection results and network instructions. The repeater transitions from a static continuous operation mode to a dynamic state-controlled mode, adjusting its forwarding capability according to real-time communication conditions to balance reliability and power consumption.
Solution Approach 2:
The system implements a feedback mechanism where the repeater detects beam failure conditions and reports to the network device, which then sends instructions to control the forwarding entity's state. This closed-loop feedback system enables the repeater to adjust its operation based on actual communication quality, preventing unnecessary power consumption while maintaining reliability when needed.
2Stability of the object's composition
If the repeater remains ON continuously to ensure signal forwarding, then the coverage stability is improved, but interference to other devices increases and network throughput decreases
Solution Approach 1:
The repeater dynamically adjusts its forwarding entity state based on detected beam failure conditions and network instructions. By transitioning from continuous operation to conditional operation, the system maintains coverage stability when beams are functional while eliminating interference during beam failure periods when the repeater safely remains OFF.
Solution Approach 2:
The feedback mechanism enables the repeater to monitor beam conditions and report to the network device, which then controls the forwarding entity's state accordingly. This ensures the repeater only operates when beam conditions are acceptable, preventing interference with other devices while maintaining coverage stability through coordinated operation.
3Device complexity
If manual ON/OFF control is used for legacy repeaters, then device complexity is reduced, but adaptability to data transmission needs is lost and network throughput is reduced
Solution Approach 1:
The system introduces a feedback-based control mechanism where the repeater detects beam failure conditions and receives instructions from the network device to control the forwarding entity's state. This automated feedback loop eliminates manual control requirements while enabling the repeater to adapt to data transmission needs, thereby improving network throughput without significantly increasing operational complexity.
Solution Approach 2:
The repeater performs self-detection of beam failure conditions and autonomously prepares to execute state changes based on pre-configured parameters. This self-service capability reduces the need for complex manual control mechanisms while enabling adaptive operation that improves network throughput by aligning repeater operation with actual data transmission requirements.
Data Source
AI summary
Embodiments of this disclosure provide a forwarding control method, an information transmission method, a repeater and a network device. The repeater includes: a mobile termination configured to perform beam failure detection; and a forwarding entity configured to be turned off/not to perform forwarding in case of beam failure.