Duplication Transmission Timer for Stable State Control
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Solution Overview
Problem
The existing PDCP duplication transmission activation/deactivation mechanism is not flexible enough, leading to ping-pong handovers between activation and deactivation states, which can limit resource utilization and affect data transmission efficiency.
Innovation Solution
Implementing a duplication transmission timer for each type of duplication transmission (PDCP, RLC, MAC, and physical layer) to manage activation and deactivation implicitly, allowing flexible control and preventing ping-pong switching by restricting state changes during the timer's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If explicit duplication transmission activation/deactivation is used, then the network can control duplication transmission, but the terminal performs ping-pong handover between activation and deactivation states due to lack of flexibility
Solution Approach 1:
The patent applies the dynamics principle by introducing a timer mechanism that allows the duplication transmission state to transition dynamically between activation and deactivation based on time-based conditions rather than rigid explicit commands. The timer creates a flexible intermediate state that prevents abrupt ping-pong switching while maintaining network control capability.
Solution Approach 2:
The timer acts as an intermediary mechanism between the network's explicit activation/deactivation commands and the terminal's state transitions. This intermediary buffer allows for controlled, gradual state changes rather than immediate switching, thereby preventing ping-pong handover while preserving network authority over duplication transmission decisions.
2Productivity
If explicit duplication transmission activation/deactivation is used, then the network maintains control, but resource utilization is limited and data transmission efficiency is affected
Solution Approach 1:
The patent implements periodic action through the timer mechanism that periodically evaluates whether duplication transmission should remain active or be deactivated. This time-based periodic review allows the system to maintain duplication transmission only when necessary, improving resource utilization efficiency while ensuring data transmission efficiency when duplication is truly needed.
Data Source
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AI summary
A duplication transmission maintaining method, a terminal, and a network device are provided, related to the field of communications. The duplication transmission maintaining method includes: maintaining a duplication transmission timer for a first duplication transmission of a target bearer.