Mobile IAB Cell Reselection to Prevent Ping-Pong Switching
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Solution Overview
Problem
The challenge of performing effective cell reselection in mobile integrated access and backhaul (IAB) node scenarios, which leads to unnecessary ping-pong cell reselection operations, increasing terminal power consumption and affecting service quality.
Innovation Solution
A cell reselection method that determines whether a terminal moves synchronously with a mobile IAB cell based on associated parameters such as reference signal received power, quality, or relative distance, and adjusts reselection priorities accordingly to avoid ping-pong reselection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cell reselection criteria are used in mobile IAB-node scenarios, then cell reselection can be performed, but unnecessary ping-pong reselection operations occur increasing terminal power consumption
Solution Approach 1:
The patent changes the cell reselection evaluation parameters by introducing synchronous movement detection between terminal and mobile IAB cell. When synchronous movement is detected, the terminal adjusts reselection criteria to prioritize maintaining connection with the mobile IAB cell, thereby reducing unnecessary reselection operations and lowering power consumption while maintaining reliable connectivity
2Reliability
If frequent cell reselection operations are performed to ensure optimal connection, then service quality can be maintained, but terminal power consumption increases
Solution Approach 1:
The patent implements a feedback mechanism where the terminal continuously monitors its movement status relative to the mobile IAB cell and adjusts reselection behavior accordingly. By detecting synchronous movement patterns, the system provides feedback that prevents unnecessary reselection operations, thereby maintaining service quality while reducing power consumption from frequent measurements and switching
3Device complexity
If traditional reselection criteria are applied without considering mobile IAB characteristics, then implementation is simple, but ping-pong reselection occurs reducing efficiency
Solution Approach 1:
The patent introduces dynamic adaptation to mobile IAB scenarios by detecting synchronous movement between terminal and mobile IAB cell. The reselection criteria dynamically adjust based on detected movement patterns, prioritizing the mobile IAB cell during synchronous movement periods. This dynamic approach improves reselection efficiency by preventing ping-pong effects while maintaining manageable complexity through standardized measurement procedures
Data Source
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AI summary
Embodiments of the present disclosure relate to the technical field of communications, and provide a cell reselection method and device. The method comprises: determining whether a terminal moves synchronously with a mobile integrated access and backhaul (IAB) cell; and executing a cell reselection according to a determination result.