Relay Communication Role Switching for Stable Service Quality
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Solution Overview
Problem
In relay-assisted communications, uncontrolled changes in signal conditions due to mobile devices moving relative to each other and base stations lead to unpredictable drops in service quality, necessitating a controlled approach for role switching between relay and remote user equipment.
Innovation Solution
Implementing a system where user equipment measures and reports signal values to a base station, which decides on role switches based on configured conditions, allowing for controlled and configurable role switching to maintain service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If role switching is performed without controlled conditions, then the system can adapt to changing signal conditions, but uncontrolled service drops occur reducing reliability
Solution Approach 1:
The patent applies parameter changes by monitoring signal quality parameters (RSRP, RSRQ) and using configured thresholds to determine when role switching should occur. The base station configures specific parameter thresholds that trigger role switching, ensuring changes are made based on quantitative signal condition changes rather than arbitrary decisions.
Solution Approach 2:
The patent implements feedback mechanisms where the user equipment continuously measures signal parameters and reports them to the base station. The base station uses this feedback to make informed decisions about role switching, creating a closed-loop control system that adapts to changing conditions while maintaining service stability.
2Speed
If role switching decisions are made autonomously by user equipment, then response time is reduced, but decision accuracy deteriorates without centralized coordination
Solution Approach 1:
The patent uses the base station as an intermediary that coordinates role switching decisions. The base station receives measurement reports from user equipment, evaluates the switching conditions based on configured criteria, and sends role switch commands when appropriate. This centralized coordination ensures accurate decision-making while maintaining relatively fast response times.
Solution Approach 2:
The patent applies preliminary action by pre-configuring role switching parameters and thresholds at the base station before actual switching is needed. The base station provides configuration information including measurement parameters and switching criteria in advance, so that when conditions change, the decision-making process can proceed efficiently with pre-established rules.
Data Source
AI summary
An arrangement for role management in relay communication is disclosed. In relay communication, one user equipment relays communication between a base station and at least one remote user equipment. Initially, the relay user equipment has a better signal to a base station. When the signal changes, a better signal channel may be achieved by switching roles between a relay user equipment and a remote user equipment. This includes detecting that a better signal exists and determining that a change would provide a better signal.