PDCP Data Duplication Activation via Protocol Layer Feedback
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Solution Overview
Problem
In the 5G system, the activation or deactivation of PDCP data duplication results in inconsistent behaviors among protocol layers, leading to unnecessary data transmission and resource wastage due to the lack of coordinated notification among protocol layers.
Innovation Solution
A method and terminal implementation that receives commands from the network side to activate or deactivate data duplication, ensuring that other protocol layers are instructed accordingly, thereby synchronizing their functions and behaviors to prevent unwanted data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network side configures PDCP data duplication function, then the data transmission reliability is improved through duplication, but other protocol layers continue to send unwanted data causing resource waste due to lack of notification
Solution Approach 1:
The patent implements a feedback mechanism where the PDCP layer entity, upon receiving activation or deactivation commands from the network side, notifies other protocol layer entities of the duplication state change. This feedback loop ensures that all layers are aware of the current duplication status and can adjust their behavior accordingly, preventing unwanted data transmission when duplication is deactivated while maintaining reliability when activated.
Solution Approach 2:
The PDCP layer entity acts as an intermediary that receives commands from the network side and translates them into notifications for other protocol layers. This intermediary role ensures coordinated behavior across different protocol layers, allowing the system to maintain reliability through duplication when needed while avoiding resource waste by preventing unwanted data transmission when duplication is not active.
2Adaptability or versatility
If the PDCP layer receives activation or deactivation commands, then the data duplication function is controlled, but other protocol layers cannot be notified resulting in inconsistent behavior
Solution Approach 1:
The patent establishes a feedback mechanism where the PDCP layer entity notifies other protocol layer entities about activation or deactivation commands received from the network side. This feedback ensures that all protocol layers maintain consistent state information, allowing the system to adaptively control data duplication while maintaining stability and consistency across protocol layers.
Solution Approach 2:
The patent segments the protocol layer notification function, with the PDCP layer entity specifically responsible for receiving commands and notifying other layers. This segmentation of responsibilities ensures that the PDCP layer can independently control duplication functionality while maintaining coordination with other layers, achieving both adaptability in duplication control and stability in protocol layer consistency.
3Reliability
If data duplication is activated without notifying other protocol layers, then redundant data paths are established improving reliability, but unnecessary data transmission occurs increasing resource consumption
Solution Approach 1:
The patent implements a feedback mechanism where the PDCP layer entity, after receiving activation or deactivation commands, notifies other protocol layer entities of the duplication state. This feedback ensures that redundant data paths are properly established when duplication is activated for improved reliability, while simultaneously preventing unnecessary data transmission when duplication is deactivated, thus maintaining network resource efficiency.
Solution Approach 2:
The PDCP layer entity serves as an intermediary that coordinates between the network side commands and other protocol layers. This intermediary function ensures that when data duplication is activated, redundant paths are properly established for reliability, and when deactivated, other layers are notified to stop unwanted transmission, thereby maintaining both reliability and network resource efficiency.
Data Source
AI summary
A method of activating and deactivating data duplication and a terminal thereof are provided. The method of activating and deactivating data duplication includes: receiving, by a protocol layer entity of the terminal, a command sent by a network side for deactivating or activating a data duplication of a bearer; and instructing, by the protocol layer entity, other protocol layers of the terminal to deactivate or activate a data duplication function of the bearer.