Bearer Packet Duplication Control for Multi-PDU Wireless Traffic
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing packet duplication and resource allocation in heterogeneous networks, leading to suboptimal performance and increased latency.
Innovation Solution
Implementing a mechanism to dynamically control packet duplication based on network conditions, traffic load, and device capabilities, utilizing flexible protocol stacks and adaptive resource allocation strategies to optimize data transmission in both user and control planes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packet duplication is implemented to improve reliability, then data transmission reliability is improved, but network resource consumption increases
Solution Approach 1:
The patent implements dynamic packet duplication control where the network device adjusts duplication parameters (such as duplication factor or active interfaces) based on real-time network conditions, device capabilities, and traffic characteristics. This allows the system to optimize between reliability and resource consumption by adapting duplication levels to current needs rather than using static duplication settings.
Solution Approach 2:
The patent changes key parameters including packet duplication factor, interface selection, and resource allocation based on network conditions and device capabilities. By dynamically adjusting these parameters, the system can improve reliability when needed while reducing resource consumption during normal operation, resolving the contradiction between reliability and energy loss.
2Productivity
If dynamic packet duplication control is implemented, then network efficiency is improved, but system complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the network device receives information about device capabilities, network conditions, and transmission performance, then uses this feedback to dynamically adjust packet duplication parameters. This closed-loop control improves network efficiency while managing complexity through automated decision-making based on predefined criteria and real-time data.
Solution Approach 2:
The system implements self-service through automated capability exchange and parameter configuration between network devices and user equipment. The network device autonomously determines optimal duplication strategies based on received capability information and current network state, reducing the need for manual configuration and simplifying operation despite the dynamic nature of the system.
3Loss of time
If adaptive resource allocation is used to reduce latency, then data transmission speed is improved, but resource management complexity increases
Solution Approach 1:
The patent performs preliminary actions by pre-configuring multiple transmission interfaces and establishing capability information exchange mechanisms before actual data transmission. This preparation allows the system to quickly adapt packet duplication parameters in real-time without complex decision-making during critical transmission moments, reducing latency while managing resource management complexity through advance setup.
Data Source
AI summary
A method can include receiving, by a wireless device, configuration parameters of a bearer of the wireless device. The configuration parameters can include a first indication that duplication of packets associated with a first protocol data unit (PDU) set of the bearer is configured. The configuration parameters can also include a second indication that duplication of packets associated with a second PDU set of the bearer is configured. The method can also include receiving a medium access control control element (MAC CE). The MAC CE can include a first control field indicating the duplication of packets associated with the first PDU set being activated. The MAC CE can also include a second control field indicating the duplication of packets associated with the second PDU set being deactivated. The method can further include communicating packets of the bearer based on the MAC CE.