Network-Controlled Repeater Link Recovery During Signal Forwarding
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Solution Overview
Problem
Network-controlled repeaters (NCRs) face interference in the link between the repeater and the base station, affecting signal forwarding, particularly in blind spot areas, leading to potential signal disruption and resource wastage.
Innovation Solution
The repeater transmits a physical random access channel to the base station to recover the control link, and subsequently ceases forwarding signals to avoid interference, employing techniques like beam and carrier component differentiation to minimize signal disruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the repeater forwards signals between the base station and user equipment, then coverage extension is achieved, but link interference occurs affecting signal accuracy
Solution Approach 1:
The patent segments the communication system into distinct control link and data link components. The control link (using physical random access channel) is separated from the data forwarding function, allowing independent management and recovery of control signals from data signals, thereby resolving the interference issue while maintaining coverage extension capability
Solution Approach 2:
The physical random access channel acts as an intermediary mechanism to recover and re-establish the control link between repeater and base station. This intermediary channel enables control signal transmission without interfering with the data forwarding function, allowing the system to maintain both coverage extension and signal accuracy
2Reliability
If the repeater transmits physical random access channel to recover control link, then link reliability is improved, but signal forwarding is temporarily ceased
Solution Approach 1:
The patent implements periodic action by using the physical random access channel for control link recovery at appropriate intervals. The system can periodically check and recover the control link without requiring continuous interruption of data forwarding, thus balancing reliability improvement with productivity maintenance
Solution Approach 2:
The physical random access channel enables preliminary action by allowing the repeater to proactively recover the control link before serious interference occurs. This preliminary recovery mechanism prevents complete link failure and minimizes the impact on ongoing signal forwarding operations
Data Source
AI summary
A control method for a network-controlled repeater includes: determining that the repeater transmits a physical random access channel to the base station, in which the physical random access channel is configured to recover a control link between the repeater and the base station; and causing the repeater to cease forwarding a signal between the base station and a user equipment. Causing the repeater to cease forwarding the signal may include causing the repeater to cease forwarding the signal between the base station and the user equipment on all carrier components or selected carrier components.