Relay Device Predicting Communication Disabled Periods
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In fifth-generation mobile communication systems, the reduced communication area of base station devices leads to frequent handovers for terminal devices, causing interruptions in live video image reception due to communication disabled periods during base station switching.
Innovation Solution
A relay device that predicts communication disabled periods and stores video data, then transmits it after a start delay period, ensuring continuous video playback during communication enabled periods and optimizing resource usage by avoiding data retransmission during disabled times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If base station devices use higher frequency bands to support increased communication volume, then communication capacity is improved, but communication area is reduced causing frequent handovers and video playback interruptions
Solution Approach 1:
The relay device performs preliminary actions by predicting communication disabled periods in advance and pre-transmitting video data packets before these periods occur. The device stores predicted video data in its storage unit during communication enabled periods, ensuring data is ready and available when handover occurs, thus maintaining video playback continuity despite frequent base station switches.
2Reliability
If video data is transmitted continuously to ensure playback during handover, then video continuity is improved, but communication resources are wasted during disabled periods
Solution Approach 1:
The relay device employs feedback mechanisms by continuously monitoring terminal device movement status and predicting future communication disabled periods based on this information. The prediction unit uses this feedback to dynamically adjust transmission timing, transmitting video data only during communication enabled periods when the terminal is reachable, thereby avoiding resource waste during disabled periods while ensuring continuity.
Solution Approach 2:
The relay device performs preliminary actions by predicting communication disabled periods in advance and pre-transmitting video data packets before these periods occur. The device stores predicted video data in its storage unit during communication enabled periods, ensuring data is ready and available when handover occurs, thus maintaining video playback continuity despite frequent base station switches.
3Reliability
If the relay device stores video data for extended periods to cover communication disabled periods, then video continuity is improved, but storage requirements and data latency increase
Solution Approach 1:
The relay device employs feedback mechanisms by continuously monitoring terminal device movement status and predicting future communication disabled periods based on this information. The prediction unit uses this feedback to dynamically adjust transmission timing, transmitting video data only during communication enabled periods when the terminal is reachable, thereby avoiding resource waste during disabled periods while ensuring continuity.
Solution Approach 2:
The relay device changes parameters by dynamically adjusting the start delay period based on predicted communication disabled period durations. When disabled periods are predicted to be short, the start delay is minimized to reduce latency. When longer disabled periods are predicted, the delay is increased accordingly. This adaptive parameter adjustment optimizes both continuity and latency performance.
Data Source
AI summary
A relay device includes, a storage configured to receive distributed video data, and store the received video data, a predictor configured to predict a communication disabled period in which the terminal device is disabled to perform communication, and a transmission controller configured to start transmission of the stored video data to the terminal device after a start delay period elapses from the start of the storing, wherein the transmission controller transmits the video data, which is to be played by the terminal device in a communication enabled period in which the terminal device is predicted to be enabled to perform communication and in the communication disabled period following the communication enabled period, to the terminal device in the communication enabled period.